Merge pull request #28 from martinhanzalek/master

Hi, I propose some changes to your cheatcheat.

README.md

@@ -1214,8 +1214,8 @@ import os
 
 ### Subprocess
 ```python
->>> import subprocess
->>> a = subprocess.run(['ls', '-a'], stdout=subprocess.PIPE)
+>>> import subprocess, shlex
+>>> a = subprocess.run(shlex.split('ls -a'), stdout=subprocess.PIPE)
 >>> a.stdout
 b'.\n..\nfile1.txt\nfile2.txt\n'
 >>> a.returncode
@@ -1456,6 +1456,12 @@ lock.acquire()
 ...
 lock.release()
 ```
+or
+```python
+lock = RLock()
+with lock:
+    ...
+```
 
 
 Introspection
@@ -1765,6 +1771,13 @@ logger.<level>('A logging message')
 ```
 * **Levels: `'debug'`, `'info'`, `'success'`, `'warning'`, `'error'`, `'critical'`.**
 
+```python
+try:
+    ...
+except Exception as e:
+    logger.exception('An error happened', e)
+```
+
 ### Rotation
 **Parameter that sets a condition when a new log file is created.**
 ```python