Updated Badges for Build Status, License, and Added Social Media Badges in README.md

[giterinhub]

Description

• Updated Build Status badge (currently a broken image)
• Updated Apache License to reflect the Repo License accurately as Apache 2.0 (currently "Apache")
• Added social media badges for discord, youtube and X

Checklist

Please make sure you've completed the relevant tasks for this PR, out of the following list:

• The quickstart code compiles correctly
• You've tested new builds of the quickstart if you changed quickstart code
• You've updated the quickstart's README if necessary
• If you have changed the steps for a quickstart be sure that you have updated the automated validation accordingly. All of our quickstarts have annotations that allow them to be executed automatically as code. For more information see mechanical-markdown. For user guide with examples see Examples.

[giterinhub]

The checks fail due to an HTTP Error for the X Link.

The link is correct, and works in a browser. When using the old Twitter domain, it also redirects instantly to the X link. I don't think the issue lies in the URL in this PR, but insteas with the Links-checker. I also ran this test with https://twitter.com/daprdev with and without a trailing "/" - all tests returned 400 for x or twitter URLs. Maybe update Mechanical Markdown? Or must the x.com link be removed completely? :(

External link validation: ... https://x.com/daprdev Status: 400