docs: update documentation

[Chief-Rishab]

• [ ] Documentation for the Provider plugins
  • [x] Add No-Op Provider
  • [x] Update BigQuery
  • [ ] Update Metabase
  • [ ] Update GCS
  • [ ] Update Grafana
  • [x] Update GCloud IAM
• [x] Add Server Jobs Reference
• [x] Add descriptions with examples on the API reference page
• [x] Update Introduction

[coveralls]

Pull Request Test Coverage Report for Build 3295052749

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 74.039%

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Totals
Change from base Build 3280619429:	0.0%
Covered Lines:	5952
Relevant Lines:	8039

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💛 - Coveralls

[mabdh]

@Chief-Rishab this has been stale for a long time, any progress for this?

[Chief-Rishab]

mas @mabdh I can start working on it now, was a bit occupied earlier

[mabdh]

@ravisuhag the more feature we develop the more likely for a doc of one of this component to be irrelevant. Should we split this documentation into several issues instead? cc @rahmatrhd @Chief-Rishab

[Chief-Rishab]

@mabdh yes, we can do one thing. I will complete the docs for provider plugins which are the first in the list of to-do's in the description and merge in the main branch. After that we can go and add the new branches for the development guide, and architecture separately since it might be a larger story altogether and add to main branch as we complete

[mabdh]

@Chief-Rishab thank you! can you please also create separate issues for the rest 🙏🏼 ?

[Chief-Rishab]

@abduh created three issues for updating the documentation. Will complete this and mark for review

[ravisuhag]

@Chief-Rishab I am merging this PR to unblock folks on updating other parts of docs. You can raise another PR for pending things on docs from your side.