make pin section better

README.rst

@@ -46,19 +46,26 @@ also found in ``helloworld.py``
   if __name__ == '__main__':
       main()
 
-When you got asked for PIN, you have to enter scrambled pin shown in Trezor display using the numeric keyboard mapping.
+PIN Entering
+------------
 
-  7 8 9
-  4 5 6
-  1 2 3
+When you are asked for PIN, you have to enter scrambled PIN. Follow the numbers shown on TREZOR display and enter the their positions using the numeric keyboard mapping:
 
-Example: your pin is 1234 and your Trezor is displaying
+=== === ===
+ 7   8   9
+ 4   5   6
+ 1   2   3
+=== === ===
 
-  2 8 3
-  5 4 6
-  7 9 1
+Example: your PIN is **1234** and TREZOR is displaying the following:
 
-You have to enter: 3795
+=== === ===
+ 2   8   3
+ 5   4   6
+ 7   9   1
+=== === ===
+
+You have to enter: **3795**
 
 How to install (Windows)
 ------------------------