Hacktoberfest 2024 MD Docs Update

[taniashiba]

Description

This PR updates the Contributing Guide & README with mentions of Hacktoberfest 2024.

Added to documentation?

• 📜 contributing.md
• 📜 readme.md

[changeset-bot]

⚠️ No Changeset found

Latest commit: f0aa2aa

Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 93.49%. Comparing base (d3b4728) to head (f0aa2aa).
Report is 2 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #909   +/-   ##
=======================================
  Coverage   93.49%   93.49%           
=======================================
  Files         117      117           
  Lines       33456    33456           
  Branches     2706     2706           
=======================================
  Hits        31281    31281           
  Misses       2136     2136           
  Partials       39       39           

Components	Coverage Δ
agent	87.59% <ø> (ø)
api	99.61% <ø> (ø)
common	98.68% <ø> (ø)
credentials	94.95% <ø> (ø)
crypto	93.79% <ø> (ø)
dids	97.77% <ø> (ø)
identity-agent	96.42% <ø> (ø)
crypto-aws-kms	100.00% <ø> (ø)
proxy-agent	96.42% <ø> (ø)
user-agent	96.57% <ø> (ø)