[SPARK-18447][DOCS] Fix the markdown for `Note:`/`NOTE:`/`Note that` across Python API documentation

## What changes were proposed in this pull request?

It seems in Python, there are

- `Note:`
- `NOTE:`
- `Note that`
- `.. note::`

This PR proposes to fix those to `.. note::` to be consistent.

**Before**

<img width="567" alt="2016-11-21 1 18 49" src="https://cloud.githubusercontent.com/assets/6477701/20464305/85144c86-af88-11e6-8ee9-90f584dd856c.png">

<img width="617" alt="2016-11-21 12 42 43" src="https://cloud.githubusercontent.com/assets/6477701/20464263/27be5022-af88-11e6-8577-4bbca7cdf36c.png">

**After**

<img width="554" alt="2016-11-21 1 18 42" src="https://cloud.githubusercontent.com/assets/6477701/20464306/8fe48932-af88-11e6-83e1-fc3cbf74407d.png">

<img width="628" alt="2016-11-21 12 42 51" src="https://cloud.githubusercontent.com/assets/6477701/20464264/2d3e156e-af88-11e6-93f3-cab8d8d02983.png">

## How was this patch tested?

The notes were found via

```bash
grep -r "Note: " .
grep -r "NOTE: " .
grep -r "Note that " .
```

And then fixed one by one comparing with API documentation.

After that, manually tested via `make html` under `./python/docs`.

Author: hyukjinkwon <gurwls223@gmail.com>

Closes #15947 from HyukjinKwon/SPARK-18447.

2 files changed, 3 insertions, 3 deletions

diff --git a/python/pyspark/streaming/context.py b/python/pyspark/streaming/context.py
index ec3ad9933c..17c34f8a1c 100644
--- a/python/pyspark/streaming/context.py
+++ b/python/pyspark/streaming/context.py
@@ -304,7 +304,7 @@ class StreamingContext(object):
         Create an input stream from an queue of RDDs or list. In each batch,
         it will process either one or all of the RDDs returned by the queue.
 
-        NOTE: changes to the queue after the stream is created will not be recognized.
+        .. note:: Changes to the queue after the stream is created will not be recognized.
 
         @param rdds:       Queue of RDDs
         @param oneAtATime: pick one rdd each time or pick all of them once.
diff --git a/python/pyspark/streaming/kinesis.py b/python/pyspark/streaming/kinesis.py
index 434ce83e1e..3a8d8b819f 100644
--- a/python/pyspark/streaming/kinesis.py
+++ b/python/pyspark/streaming/kinesis.py
@@ -42,8 +42,8 @@ class KinesisUtils(object):
         Create an input stream that pulls messages from a Kinesis stream. This uses the
         Kinesis Client Library (KCL) to pull messages from Kinesis.
 
-        Note: The given AWS credentials will get saved in DStream checkpoints if checkpointing is
-        enabled. Make sure that your checkpoint directory is secure.
+        .. note:: The given AWS credentials will get saved in DStream checkpoints if checkpointing
+            is enabled. Make sure that your checkpoint directory is secure.
 
         :param ssc:  StreamingContext object
         :param kinesisAppName:  Kinesis application name used by the Kinesis Client Library (KCL) to