Docs: Fix copypaste errors in YAML-file

changelog.d/10804.doc

@@ -0,0 +1 @@
+Fixed a wording mistake in the sample configuration. Contributed by @bramvdnheuvel:nltrix.net.

docs/sample_config.yaml

@@ -2086,7 +2086,7 @@ password_config:
       #
       #require_lowercase: true
 
-      # Whether a password must contain at least one lowercase letter.
+      # Whether a password must contain at least one uppercase letter.
       # Defaults to 'false'.
       #
       #require_uppercase: true

synapse/config/auth.py

@@ -88,7 +88,7 @@ def generate_config_section(self, config_dir_path, server_name, **kwargs):
               #
               #require_lowercase: true
 
-              # Whether a password must contain at least one lowercase letter.
+              # Whether a password must contain at least one uppercase letter.
               # Defaults to 'false'.
               #
               #require_uppercase: true