Update heading of readme.md

Author: szsascha

readme.md

@@ -1,4 +1,4 @@
-## C/C++ Extension Pack
+## IBM i Development Extension Pack
 
 This extension pack includes a set of extensions for IBM i development in Visual Studio Code:
 
@@ -11,4 +11,4 @@ This extension pack includes a set of extensions for IBM i development in Visual
 
 ### Notice
 
-We have no affiliation with IBM.
+We have no affiliation with IBM.