Use correct emphasis markup (#1608)

Yuki Kobayashi · web-flow · commit bdfc99f7b8e2 · 2025-07-19T11:46:09.000+01:00
diff --git a/development-tools/clinic.rst b/development-tools/clinic.rst
@@ -107,8 +107,8 @@ Terminology
 
    end line
       The line ``[clinic start generated code]*/``.
-      The *end line* marks the _end_ of Argument Clinic :term:`input`,
-      but at the same time marks the _start_ of Argument Clinic :term:`output`,
+      The *end line* marks the *end* of Argument Clinic :term:`input`,
+      but at the same time marks the *start* of Argument Clinic :term:`output`,
       thus the text *"clinic start start generated code"*
       Note that the *end line* closes the C block comment opened
       by the *start line*.
