Add resources, Issue #58

[crmsnbleyd]

-Created new sub-heading Browser extensions for GitHub

• Added link to GitZip
• Added link to Refined Github -Added https://try.github.io under subheading Git Documentation

[HarshKapadia2]

Thank you for the PR, @crmsnbleyd!

I realised after your PR that I didn't mention the exact details that I needed for the link text. I have described the changes that I need below. Sorry for the inconvenience!

A few changes:

• Please rename 'Github' to 'GitHub'.
• For https://try.github.io, let the link text be <link>[GitHub's resources for Git^]
• For the browser extensions sub-heading
  • https://github.com/sindresorhus/refined-github#install[Refined GitHub^] - Simplifies the GitHub interface and adds useful features (available for Chrome, Edge, Firefox and Opera)
  • https://gitzip.org/#extension[GitZip for GitHub^] - Only download required sub-folders/files from GitHub repos (available for Chrome, Edge and Firefox)

[crmsnbleyd]

@HarshKapadia2 I have made another commit making the changes requested, please review it.

[HarshKapadia2]

Ah you forgot to change the links for the browser extensions... Also, please keep your commit messages short and add the descriptive stuff to the commit description if you need.

[crmsnbleyd]

Updated the links!

[HarshKapadia2]

Looks fine to me. Thank you for the PR, @crmsnbleyd! All the best for your open source journey!