Grammatically update the readme docs

[PratishShrivastava]

Small grammatical update to the readme docs.

[facebook-github-bot]

Hi @PratishShrivastava!

Thank you for your pull request and welcome to our community. We require contributors to sign our Contributor License Agreement, and we don't seem to have you on file.

In order for us to review and merge your code, please sign at https://code.facebook.com/cla. If you are contributing on behalf of someone else (eg your employer), the individual CLA may not be sufficient and your employer may need to sign the corporate CLA.

If you have received this in error or have any questions, please contact us at cla@fb.com. Thanks!

[facebook-github-bot]

@mrshenli has imported this pull request. If you are a Facebook employee, you can view this diff on Phabricator.

[ssnl]

I don't know about this. Maybe a lot of these things are debatable, but I don't think "our website" or "further" should be capitalized.

[codecov]

Codecov Report

Merging #48328 (ab206fa) into master (6eaf1e3) will decrease coverage by 0.14%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master   #48328      +/-   ##
==========================================
- Coverage   80.91%   80.76%   -0.15%     
==========================================
  Files        1845     1845              
  Lines      199679   199679              
==========================================
- Hits       161571   161275     -296     
- Misses      38108    38404     +296     

[facebook-github-bot]

@mrshenli merged this pull request in e56e21b.