README changed

README.md

 Install using 
-'$ pip install tfields'
+    $ pip install tfields
 
 
 Testing:
-    In the tfields directory, run
-        'python tfields test'
+*In the tfields directory, run
+    python tfields test
 
 Developers only:
-    Clone this project with git
-    To set up the shared git hooks, run
-        'make init'
+*Clone this project with git
+*To set up the shared git hooks, run
+    $ make init
 
-    To check the coverage, we prefere the 'coverage' tool
-    Use it in the tfields directory like so:
-        'coverage run tfields test'
+*To check the coverage, we prefere the 'coverage' tool
+*Use it in the tfields directory like so:
+    coverage run tfields test