adding support for gemini on linux/wsl distros

[aryanbhosale]

Context

To minimize the number of steps for gemini users on wsl / linux distros, added a .env.example file for safety rather than the env file itself, this could be added to a new branch named "gemini_setup"

How has this been tested?

Followed all the steps given here, and it shows the desired output

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature or improvement (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

Checklist:

• My code follows the code style of this project,
• My change requires a change to the documentation,
• I described the modification in the CHANGELOG.md file.

[CLAassistant]

All committers have signed the CLA.

[aryanbhosale]

I can write an updated docs for Gemini