ci: deploy documentation on releases

[dyladan]

Which problem is this PR solving?

• Host API Documentation #440

Short description of the changes

• Add a job in circle ci that deploys docs to the gh-pages branch
• Docs deploy when a tag matching /^v\d+\.\d+\.\d+$/ regex is pushed

[codecov-io]

Codecov Report

Merging #629 into master will decrease coverage by 0.24%.
The diff coverage is 83.57%.

@@            Coverage Diff             @@
##           master     #629      +/-   ##
==========================================
- Coverage   90.49%   90.25%   -0.25%     
==========================================
  Files         181      189       +8     
  Lines        9209     9602     +393     
  Branches      819      876      +57     
==========================================
+ Hits         8334     8666     +332     
- Misses        875      936      +61

Impacted Files	Coverage Δ
packages/opentelemetry-core/src/common/types.ts	100% <ø> (ø)	⬆️
...ntelemetry-web/src/enums/PerformanceTimingNames.ts	100% <ø> (ø)
...ckages/opentelemetry-plugin-grpc/test/grpc.test.ts	96.2% <100%> (+0.09%)	⬆️
...telemetry-plugin-document-load/src/documentLoad.ts	97.93% <100%> (-0.2%)	⬇️
packages/opentelemetry-plugin-grpc/src/grpc.ts	96.25% <100%> (+0.1%)	⬆️
...ry-plugin-xml-http-request/src/enums/EventNames.ts	100% <100%> (ø)
...emetry-plugin-xml-http-request/src/enums/Format.ts	100% <100%> (ø)
packages/opentelemetry-web/src/WebTracer.ts	100% <100%> (ø)	⬆️
...lugin-xml-http-request/src/enums/AttributeNames.ts	100% <100%> (ø)
packages/opentelemetry-core/src/utils/wrap.ts	100% <100%> (ø)
... and 25 more

[mayurkale22]

LGTM, added a few maintenance related questions.

[mayurkale22]

@open-telemetry/javascript-approvers we need more reviews for this one!

[mayurkale22]

Last question: what will be the domain name for gh-pages(documentation) after last change?

[dyladan]

Last question: what will be the domain name for gh-pages(documentation) after last change?

https://open-telemetry.github.io/opentelemetry-js/

[OlivierAlbertini]

excellent 🚀🚀

[dyladan]

@mayurkale22 now that this is merged, someone with access to settings has to enable gh-pages. I don't have access.

[mayurkale22]

@mayurkale22 now that this is merged, someone with access to settings has to enable gh-pages. I don't have access.

Even I don't have access to settings tab, maybe @tedsuo can help here.

[dyladan]

I asked in gitter, but nobody responded