[IMPROVE] Remove Python remarks in the Installer version

[JerBouma]

What's the feature that should be improved?
There are comments about Python in the installer that shouldn't be there (e.g. '$ python terminal.py /stocks/disc/ugs -n 3/../load tsla/candle'):

╭──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── Home ────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╮
│                                                                                                                                                                                                                                                                      │
│ Get API keys from data providers to access more features.                                                                                                                                                                                                            │
│     For more instructions use: 'keys'.                                                                                                                                                                                                                               │
│     To see all features follow: https://openbb-finance.github.io/OpenBBTerminal/                                                                                                                                                                                     │
│                                                                                                                                                                                                                                                                      │
│ Multiple jobs queue (where each '/' denotes a new command).                                                                                                                                                                                                          │
│     E.g. '/stocks $ disc/ugs -n 3/../load tsla/candle'                                                                                                                                                                                                               │
│                                                                                                                                                                                                                                                                      │
│ If you want to jump from crypto/ta to stocks you can use an absolute path that starts with a slash (/).                                                                                                                                                              │
│     E.g. '/crypto/ta $ /stocks'                                                                                                                                                                                                                                      │
│                                                                                                                                                                                                                                                                      │
│ The previous logic also holds for when launching the terminal.                                                                                                                                                                                                       │
│     E.g. '$ python terminal.py /stocks/disc/ugs -n 3/../load tsla/candle'                                                                                                                                                                                            │
│                                                                                                                                                                                                                                                                      │
│ You can run a standalone .openbb routine file with:                                                                                                                                                                                                                  │
│     E.g. '$ python terminal.py routines/example.openbb'                                                                                                                                                                                                              │
│                                                                                                                                                                                                                                                                      │
│ You can run a .openbb routine file with variable inputs:                                                                                                                                                                                                             │
│     E.g. '$ python terminal.py routines/example_with_inputs.gst --input pltr,tsla,nio'                                                                                                                                                                               │
│                                                                                                                                                                                                                                                                      │
│ The main commands you should be aware when navigating through the terminal are:                                                                                                                                                                                      │
│     cls             clear the screen                                                                                                                                                                                                                                 │
│     help / h / ?    help menu                                                                                                                                                                                                                                        │
│     quit / q / ..   quit this menu and go one menu above                                                                                                                                                                                                             │
│     exit            exit the terminal                                                                                                                                                                                                                                │
│     reset / r       reset the terminal and reload configs from the current location                                                                                                                                                                                  │
│     resources       only available on main contexts (not sub-menus)                                                                                                                                                                                                  │
│     support         pre-populate support ticket for our team to evaluate                                                                                                                                                                                             │
│                                                                                                                                                                                                                                                                      │
│     about           about us                                                                                                                                                                                                                                         │
│     update          update terminal automatically                                                                                                                                                                                                                    │
│     tz              set different timezone                                                                                                                                                                                                                           │
│     export          select export folder to output data                                                                                                                                                                                                              │
│     exe             execute automated routine script                                                                                                                                                                                                                 │
│ >   settings        set feature flags and style charts                                                                                                                                                                                                               │
│ >   keys            set API keys and check their validity          

Describe how you would like the feature improved
Remove this if the installer package is created or find a replacement command.

Bonus: note the .gst in '$ python terminal.py routines/example_with_inputs.gst --input pltr,tsla,nio', that should be .openbb

[DidierRLopes]

I have fixed this in #1852, thanks!