Updates to TorchServe page on pytorch.org

[agunapal]

Description

Update TorchServe's documentation in https://pytorch.org/serve/

Fixes #(issue)

Type of change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• New feature (non-breaking change which adds functionality)
• This change requires a documentation update

Feature/Issue validation/testing

NA

Checklist:

• Did you have fun?
• Have you added tests that prove your fix is effective or that this feature works?
• Has code been commented, particularly in hard-to-understand areas?
• Have you made corresponding changes to the documentation?

[codecov]

Codecov Report

Merging #2243 (0d2b51c) into master (fa95a66) will decrease coverage by 0.09%.
The diff coverage is n/a.

❗ Current head 0d2b51c differs from pull request most recent head b9baa4b. Consider uploading reports for the commit b9baa4b to get more accurate results

@@            Coverage Diff             @@
##           master    #2243      +/-   ##
==========================================
- Coverage   71.47%   71.38%   -0.09%     
==========================================
  Files          73       73              
  Lines        3341     3341              
  Branches       57       57              
==========================================
- Hits         2388     2385       -3     
- Misses        950      953       +3     
  Partials        3        3              

see 1 file with indirect coverage changes

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[msaroufim]

One minor nit

[min-jean-cho]

left some minor comments, otherwise LGTM