ci: add markdown lint and fixed markdown files

[arbiv]

Which problem is this PR solving?

#396

Short description of the changes

Added lint for markdown

[linux-foundation-easycla]

The committers are authorized under a signed CLA.

• ✅ Yosef Arbiv (ae8f00e)

[codecov]

Codecov Report

Merging #716 (ac74835) into main (572ed66) will decrease coverage by 2.17%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main     #716      +/-   ##
==========================================
- Coverage   96.87%   94.70%   -2.18%     
==========================================
  Files          11      135     +124     
  Lines         640     9948    +9308     
  Branches      126     1008     +882     
==========================================
+ Hits          620     9421    +8801     
- Misses         20      527     +507     

Impacted Files	Coverage Δ
...e/opentelemetry-instrumentation-pg/test/pg.test.ts	95.01% <0.00%> (ø)
...ackages/opentelemetry-host-metrics/src/stats/si.ts	66.66% <0.00%> (ø)
...y-instrumentation-memcached/src/instrumentation.ts	96.42% <0.00%> (ø)
...extension-autoinjection/src/contentScript/index.ts	0.00% <0.00%> (ø)
...er-extension-autoinjection/src/background/index.ts	0.00% <0.00%> (ø)
...metry-resource-detector-gcp/src/detectors/index.ts	100.00% <0.00%> (ø)
...ry-instrumentation-aws-sdk/test/aws-sdk-v2.test.ts	100.00% <0.00%> (ø)
...or-aws/test/detectors/AwsBeanstalkDetector.test.ts	100.00% <0.00%> (ø)
...extension-autoinjection/test/contentScript.test.ts	100.00% <0.00%> (ø)
...telemetry-instrumentation-mysql/test/index.test.ts	98.39% <0.00%> (ø)
... and 114 more

[obecny]

lgtm

[arbiv]

UT failure and coverage decrease seems irrelevant to the changes in the PR

[arbiv]

@dyladan I fixed the comment, can you please re-review it?

[vmarchaud]

@arbiv Could you please fix the conflict so we can merge this ?

[arbiv]

@vmarchaud Fixed conflict