Add docs for pinning notebooks/collection to featured

[tanya1108]

Summary:

Docs for pinning notebooks/collection to featured has been added.

Screenshot

UPDATED PREVIEW LINK []https://jovian-codebase.readthedocs.io/en/tanya-make-docs-for-pinning-notebooks-collection-featured/user-guide/featured.html Queries

• What other point needs to be added?

• What modifications are needed in the current change?

[codecov[bot]]

Codecov Report

Merging #226 into master will not change coverage. The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #226   +/-   ##
=======================================
  Coverage   94.01%   94.01%           
=======================================
  Files          31       31           
  Lines        1453     1453           
=======================================
  Hits         1366     1366           
  Misses         87       87           

Flag	Coverage Δ
unittests	94.01% <ø> (ø)

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[aakashns]

@PrajwalPrashanth please review