Refs #35782 -- Documented the get_help_text methods in password validators.

docs/topics/auth/passwords.txt

@@ -600,6 +600,11 @@ Django includes four validators:
     Validates that the password is of a minimum length.
     The minimum length can be customized with the ``min_length`` parameter.
 
+    .. method:: get_help_text()
+
+        A hook for customizing the validator's help text. Defaults to ``"Your
+        password must contain at least <min_length> characters."``
+
 .. class:: UserAttributeSimilarityValidator(user_attributes=DEFAULT_USER_ATTRIBUTES, max_similarity=0.7)
 
     Validates that the password is sufficiently different from certain
@@ -617,6 +622,11 @@ Django includes four validators:
     ``user_attributes``, whereas a value of 1.0 rejects only passwords that are
     identical to an attribute's value.
 
+    .. method:: get_help_text()
+
+        A hook for customizing the validator's help text. Defaults to ``"Your
+        password can’t be too similar to your other personal information."``
+
 .. class:: CommonPasswordValidator(password_list_path=DEFAULT_PASSWORD_LIST_PATH)
 
     Validates that the password is not a common password. This converts the
@@ -628,10 +638,20 @@ Django includes four validators:
     common passwords. This file should contain one lowercase password per line
     and may be plain text or gzipped.
 
+    .. method:: get_help_text()
+
+        A hook for customizing the validator's help text. Defaults to ``"Your
+        password can’t be a commonly used password."``
+
 .. class:: NumericPasswordValidator()
 
     Validate that the password is not entirely numeric.
 
+    .. method:: get_help_text()
+
+        A hook for customizing the validator's help text. Defaults to ``"Your
+        password can’t be entirely numeric."``
+
 Integrating validation
 ----------------------