Add demo gif

[shubydo]

Proposed changes

Add demo gif to README

Other changes:

• Set version of go in build workflow. Not setting the version was causing errors: example

Issues for these changes

Types of changes

• Bugfix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Refactor (changes to code, which do not change application behavior)

Checklist

• I have filled out this PR template
• I have read the CONTRIBUTING doc
• I have added automated tests that prove my fix is effective or that my feature works
• I have added necessary documentation (README.md, CHANGELOG.md, etc. - if appropriate)

Dependencies and Blockers

Relevant Links

Further comments

[bryonwinger]

Nice addition!

[github-actions]

Unit Test Results

    2 files  ±0      2 suites  ±0   10s ⏱️ ±0s
249 tests ±0  249 ✔️ ±0  0 💤 ±0  0 ❌ ±0 

Results for commit 5922523. ± Comparison against base commit d9c5b21.