Update README.md

README.md

@@ -30,21 +30,29 @@ Remember that python (2.7) syntax is mandatory in this file
 ### How to use the software
 
 After configuring the software, make sure you are in the parent directory were the README, LICENSE and MANIFEST files are located
-> ls 
-LICENSE.txt  MANIFEST.in  README.txt  pysqm  config.py  setup.py
+```
+ls 
+> LICENSE.txt  MANIFEST.in  README.txt  pysqm  config.py  setup.py
+```
 
 And then run the software.
-> python -m pysqm 
+```
+python -m pysqm 
+```
 
 The program should find your SQM device and the data adquisition.will start (if it's night-time). 
 
 In some systems, where python3 is the default version of python, you need to specify python2 as the interpreter to use. This is done usually running it as:
 
-> python2 -m pysqm
+```
+python2 -m pysqm
+```
 
 or
 
-> python2.7 -m pysqm
+```
+python2.7 -m pysqm
+```
 
 Note: running the setup.py script is neither tested nor required. The program is currently being redesigned as a normal python package, but at present no setup is required.