Small README syntax fix

README.md

@@ -52,7 +52,7 @@ The following files will be automatically compiled:
 
 | Wildcard           | Description                   |
 | ------------------ | ----------------------------- |
-| `src/*.app.src     | OTP application resource file |
+| `src/*.app.src`    | OTP application resource file |
 | `src/*.erl`        | Erlang source files           |
 | `src/*.core`       | Core Erlang source files      |
 | `templates/*.dtl`  | ErlyDTL template files        |