DOC: legal process to perform a public release of a PyAnsys library

[jorgepiloto]

Fix #232. This pull-request improves the section regarding the legal process required to perform a public release of a PyAnsys library. The following modifications were made:

• Document in detail the approval process.
• Document the public release process. Reorganize the associated section in the How-To guide.
• Rename the "Overview" chapter as "Getting started".
• Use panels to collect grid elements pointing to common documentation chapters and sections.

[jorgepiloto]

This is taking a bit more than expected but the results are looking really good. I am really taking care of the layout and structure so this is presented in a clean way to readers.

[RobPasMue]

Overall it's looking good! Mostly editorial comments. I'll leave it approved, pending the resolution of my comments

[MaxJPRey]

Look's great.

[RobPasMue]

It looks like there are some issues in the build process. Can you look into them before merging @jorgepiloto?

[jorgepiloto]

I think it would be nice to include a documentation review inside the technical part of the process. I am not talking about documentation guidelines but quality. This is something @pyansys/documentation team should perform.

[RobPasMue]

I think it would be nice to include a documentation review inside the technical part of the process. I am not talking about documentation guidelines but quality. This is something @pyansys/documentation team should perform.

Agreed, it should be a must.