Add documentation for the newly introduced Jinja filters.

doc/topics/jinja/index.rst

@@ -1309,6 +1309,49 @@ Returns:
 .. _`JMESPath language`: http://jmespath.org/
 .. _`jmespath`: https://github.com/jmespath/jmespath.py
 
+
+.. jinja_ref:: to_snake_case
+
+``to_snake_case``
+-----------------
+
+.. versionadded:: Neon
+
+Converts a string from camelCase (or CamelCase) to snake_case.
+
+.. code-block:: jinja
+
+  Example: {{ camelsWillLoveThis | to_snake_case }}
+
+Returns:
+
+.. code-block:: text
+
+  Example: camels_will_love_this
+
+
+.. jinja_ref:: to_camelcase
+
+``to_camelcase``
+----------------
+
+.. versionadded:: Neon
+
+Converts a string from snake_case to camelCase (or UpperCamelCase if so indicated).
+
+.. code-block:: jinja
+
+  Example 1: {{ snake_case_for_the_win | to_camelcase }}
+
+  Example 2: {{ snake_case_for_the_win | to_camelcase(uppercamel=True) }}
+
+Returns:
+
+.. code-block:: text
+
+  Example 1: snakeCaseForTheWin
+  Example 2: SnakeCaseForTheWin
+
 Networking Filters
 ------------------