Update compilers.md

docs.it4i/software/compilers.md

@@ -97,13 +97,13 @@ int main() {
 }
 ```
 
-To compile the example use
+To compile the example, use:
 
 ```console
 $ gupc -o count.upc.x count.upc
 ```
 
-To run the example with 5 threads issue
+To run the example with 5 threads, use:
 
 ```console
 $ ./count.upc.x -fupc-threads-5

[Jan Siwiec]

relates to #70