identify python code block for syntax highlighting

SC2089.md

@@ -18,7 +18,7 @@ ls "${args[@]}"
 
 Bash does not interpret data as code. Consider almost any other languages, such as Python:
 
-```sh
+```python
 print 1+1   # prints 2
 a="1+1"
 print a     # prints 1+1, not 2