Update doc/en/reference/reference.rst

Co-authored-by: Zac Hatfield-Dodds <[email protected]>

Author: gomri15

doc/en/reference/reference.rst

@@ -2104,7 +2104,7 @@ passed multiple times. The expected format is ``name=value``. For example::
             assert x in (1, 2)
 
     will raise an exception due to the duplicate IDs "a".
-    when normal pytest behavior would be to handle this by generating unique IDs like "a-0", "a-1".
+    Otherwise, pytest would handle this by generating unique IDs like "a0", "a1".
 
 
 .. _`command-line-flags`: