Fixing references to "dead" docs links. (#3631)
Fixing references to "dead" docs links. (#3631)

* Fixing references to "dead" docs links.

Done via:

$ git grep -l 'google-cloud-auth.html' | \
> xargs sed -i s/'google-cloud-auth.html'/'core\/auth.html'/g
$ git grep -l 'http\:\/\/google-cloud-python.readthedocs.io' | \
> xargs sed -i s/'http\:\/\/google-cloud-python.readthedocs.io'/\
> 'https\:\/\/google-cloud-python.readthedocs.io'/g

Fixes #3531.

* Fixing up other docs that were moved in #3459.

googleapis/python-translate,googleapis/python-translate