DOC: fix typo

[mattip]

Continuation of gh-1105, gh-1111
Copy-paste failure: I did not update the target to this repo. It is a good thing the push failed.

[codecov]

Codecov Report

Merging #1112 (a530e1f) into master (698cdc7) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #1112   +/-   ##
=======================================
  Coverage   77.54%   77.54%           
=======================================
  Files          45       45           
  Lines        3086     3086           
=======================================
  Hits         2393     2393           
  Misses        693      693           

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[mthrok]

Triggered nightly

[mthrok]

Worked! 🎉

http://pytorch.org/text/master/index.html

Thanks @mattip for the help!