Fixed typos and formatting

Author: jbednar

docs/source/gpu-dataframes.rst

@@ -1,13 +1,15 @@
-Streaming GPU DataFrames(cudf)
-------------------------------
+Streaming GPU DataFrames (cudf)
+-------------------------------
 
-The ``streamz.dataframe`` module provides DataFrame-like interface on streaming
-data as described in ``dataframes`` documentation. It provides support for dataframe
-like libraries such as pandas and cudf. This documentation is specific to streaming GPU
-dataframes(cudf).
+The ``streamz.dataframe`` module provides a DataFrame-like interface
+on streaming data as described in the ``dataframes`` documentation. It
+provides support for dataframe-like libraries such as pandas and
+cudf. This documentation is specific to streaming GPU dataframes using
+cudf.
 
-The example in the ``dataframes`` documentation is rewritten below using cudf dataframes
-just by replacing ``pandas`` module with ``cudf``:
+The example in the ``dataframes`` documentation is rewritten below
+using cudf dataframes just by replacing the ``pandas`` module with
+``cudf``:
 
 .. code-block:: python
 
@@ -23,19 +25,21 @@ just by replacing ``pandas`` module with ``cudf``:
 Supported Operations
 --------------------
 
-Streaming cudf dataframes support the following classes of operations
+Streaming cudf dataframes support the following classes of operations:
 
 -  Elementwise operations like ``df.x + 1``
 -  Filtering like ``df[df.name == 'Alice']``
 -  Column addition like ``df['z'] = df.x + df.y``
 -  Reductions like ``df.amount.mean()``
 -  Windowed aggregations (fixed length) like ``df.window(n=100).amount.sum()``
 
-The following operations are not supported with cudf(as of version 0.8) yet
+The following operations are not yet supported with cudf (as of version 0.8):
+
 -  Groupby-aggregations like ``df.groupby(df.name).amount.mean()``
 -  Windowed aggregations (index valued) like ``df.window(value='2h').amount.sum()``
 -  Windowed groupby aggregations like ``df.window(value='2h').groupby('name').amount.sum()``
 
 
-Window based Aggregations with cudf are supported just as explained in ``dataframes`` documentation.
-The support for groupby operations will be added in future.
+Window-based Aggregations with cudf are supported just as explained in
+the ``dataframes`` documentation.  Support for groupby operations is
+expected to be added in the future.