Fix doc title syntax

amaslenn · philpep · commit a1e4c246c2cb · 2023-11-13T17:29:24.000+01:00
diff --git a/doc/source/modules.rst b/doc/source/modules.rst
@@ -146,7 +146,7 @@ Docker
 
 
 Environment
-~~~~~~
+~~~~~~~~~~~
 
 .. autoclass:: testinfra.modules.environment.Environment(name)
    :members:
