Correct invocation command for testing the parser

pablogsal · pablogsal · commit 481ed0b36301 · 2021-08-25T11:52:23.000+01:00
diff --git a/parser.rst b/parser.rst
@@ -847,7 +847,7 @@ For this reason it is a good idea to experiment first by generating a Python par
 
 .. code-block:: shell
 
-    $ python -m pegen python ~/github/pegen/data/expr.gram
+    $ python -m pegen python <PATH TO YOUR GRAMMAR FILE>
 
 This will generate a file called :file:`parse.py` in the same directory that you can use to parse some input:
 
