doc: add more links to Bentoml/examples

[larme]

What does this PR address?

Fixes #(issue)

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[codecov]

Codecov Report

Merging #3631 (9e95042) into main (bcc10ac) will not change coverage.
The diff coverage is n/a.

❗ Current head 9e95042 differs from pull request most recent head a6c7b29. Consider uploading reports for the commit a6c7b29 to get more accurate results

@@           Coverage Diff           @@
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  Coverage   31.74%   31.74%           
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  Files         149      149           
  Lines       12149    12149           
  Branches     2001     2001           
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  Hits         3857     3857           
  Misses       8008     8008           
  Partials      284      284           

[larme]

@aarnphm hoverxref seems only works on crossing reference so I did not include it in this pr (which mainly links to outside links)

[aarnphm]

Quick review of a few small things. Otherwise LGTM

[larme]

@aarnphm please look again

[aarnphm]

LGTM. Great work!!