edited readme for nimble packaging

README.MD

@@ -39,9 +39,12 @@ There are some configuration variables explicit to me, you'll need to change the
 Configuration variables are compile - there are no config files or runtime parameters (except for "rofi")  
 
 Each tool is compiled separately, for example:
-```nim
+```sh
+nimble install
+or
 nim c pingclock
 ```
+
 and then run with
 ```sh
 ./pingclock