fix docs

Author: jreback

doc/source/io.rst

@@ -4657,6 +4657,8 @@ Google BigQuery
    Starting in 0.20.0, pandas has split off Google BigQuery support into the
    separate package ``pandas-gbq``. You can ``pip install pandas-gbq`` to get it.
 
+   Documentation is now hosted `here <https://pandas-gbq.readthedocs.io/>`__
+
 .. versionadded:: 0.13.0
 
 The :mod:`pandas.io.gbq` module provides a wrapper for Google's BigQuery

doc/source/whatsnew/v0.20.0.txt

@@ -360,6 +360,15 @@ New Behavior:
   In [5]: df['a']['2011-12-31 23:59:59']
   Out[5]: 1
 
+.. _whatsnew_0200.api_breaking.gbq:
+
+Pandas Google BigQuery support has moved
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+pandas has split off Google BigQuery support into a separate package ``pandas-gbq``. You can ``pip install pandas-gbq`` to get it.
+The functionaility of ``pd.read_gbq()`` and ``.to_gbq()`` remains the same with the currently released version of ``pandas-gbq=0.1.2``. (:issue:`15347`)
+Documentation is now hosted `here <https://pandas-gbq.readthedocs.io/>`__
+
 .. _whatsnew_0200.api_breaking.memory_usage:
 
 Memory Usage for Index is more Accurate

pandas/io/gbq.py

@@ -12,7 +12,7 @@ def _try_import():
         # give a nice error message
         raise ImportError("the pandas-gbq library is not installed\n"
                           "you can install\n"
-                          "pip install pandas-gbqt\n")
+                          "pip install pandas-gbq\n")
 
     return pandas_gbq