Fix "Define the model" link. (#16661)
authorKenji <kenji.toyama@gmail.com>
Fri, 2 Feb 2018 20:16:49 +0000 (20:16 +0000)
committerShanqing Cai <cais@google.com>
Fri, 2 Feb 2018 20:16:49 +0000 (15:16 -0500)
commit31427937f9f4bfb777648819bb87db7f0d36ecd8
treef631cd17dfe3faca9bb7bfbe99bcbff2e4f73eab
parenta0c324430ca03121bdbdfd97065517445f40e12b
Fix "Define the model" link. (#16661)

The link syntax was inverted, that is, round brackets were coming before square brackets, but Markdown doesn't like it.
tensorflow/docs_src/get_started/custom_estimators.md