Merge pull request #21 from anil-grexit/patch-1

Add pymysql to supported libraries list

Author: alivest

doc-source/xray-sdk-python-patching.md

@@ -10,6 +10,7 @@ To instrument downstream calls, use the X\-Ray SDK for Python to patch the libra
 + `[httplib](https://docs.python.org/2/library/httplib.html)`, [https://docs.python.org/3/library/http.client.html](https://docs.python.org/3/library/http.client.html) – Instrument low\-level HTTP clients and the higher level libraries that use them\.
 + `[sqlite3](https://docs.python.org/3/library/sqlite3.html)` – Instrument SQLite clients\.
 + `[mysql\-connector\-python](https://pypi.python.org/pypi/mysql-connector-python)` – Instrument MySQL clients\.
++ `[pymysql](https://pypi.org/project/PyMySQL/)` - Instrument PyMySQL based clients for MySQL & MariaDB\.
 
 When you use a patched library, the X\-Ray SDK for Python creates a subsegment for the call and records information from the request and response\. A segment must be available for the SDK to create the subsegment, either from the SDK middleware or from AWS Lambda\.
 
@@ -75,4 +76,4 @@ from aws_xray_sdk.core import patch
 
 libraries = ('aioboto3')
 patch(libraries)
-```
+```