added ramp package installation guide and correction of syntax of installation.rst file for bash code displaying

[Emre-Yorat89]

Closes # (if applicable).

Changes proposed in this Pull Request

Checklist

• I consent to the release of this PR's code under the GPLv3 license and non-code contributions under CC0-1.0 and CC-BY-4.0.
• I tested my contribution locally and it seems to work fine.
• Code and workflow changes are sufficiently documented.
• Newly introduced dependencies are added to the main environment at PyPSA-Earth repository
• Changes in configuration options are added in all of config.default.yaml and config.tutorial.yaml.
• Add a test config or line additions to test/ (note tests are changing the config.tutorial.yaml)
• Changes in configuration options are also documented in doc/configtables/*.csv and line references are adjusted in doc/configuration.rst and doc/tutorial.rst.
• A note for the release notes doc/release_notes.rst is amended in the format of previous release notes, including reference to the requested PR.

[davide-f]

Great @Emre-Yorat89 :D
This is ready to merge!!! The only point, please check the list of the PR, in particular the approval of the license

[Emre-Yorat89]

Great @Emre-Yorat89 :D This is ready to merge!!! The only point, please check the list of the PR, in particular the approval of the license

Okey, I have given the permission for the license thank you :)

[davide-f]

Great @Emre-Yorat89 :D This is ready to merge!!! The only point, please check the list of the PR, in particular the approval of the license

Okey, I have given the permission for the license thank you :)

Merged :D many thanks!
Officially a contributor of distribution :D