Adjust YAML in plugin docs (#10234)

* Adjust YAML in plugin docs.

* Update ignore.txt.

* Forgot two indents.

* adjust connection plugins
adjust filter plugins
adjust inventory plugins
adjust lookup plugins

* Re-add YAML document start.

---------

Co-authored-by: Alexei Znamensky <russoz@gmail.com>

plugins/filter/json_patch.yml

@@ -64,7 +64,7 @@ EXAMPLES: |
     ansible.builtin.debug:
       msg: "{{ input | community.general.json_patch('add', '/1', {'baz': 'qux'}) }}"
     vars:
-        input: ["foo": { "one": 1 }, "bar": { "two": 2 }]
+      input: ["foo": { "one": 1 }, "bar": { "two": 2 }]
     # => [{"foo": {"one": 1}}, {"baz": "qux"}, {"bar": {"two": 2}}]
 
   - name: Insert a new key into a dictionary

plugins/filter/to_prettytable.py

@@ -5,7 +5,7 @@
 
 from __future__ import (absolute_import, division, print_function)
 
-DOCUMENTATION = '''
+DOCUMENTATION = r"""
 name: to_prettytable
 short_description: Format a list of dictionaries as an ASCII table
 version_added: "10.7.0"
@@ -37,9 +37,9 @@ options:
           For example, V({'name': 'left', 'id': 'right'}) will align the C(name) column to the left
           and the C(id) column to the right.
     type: dictionary
-'''
+"""
 
-EXAMPLES = '''
+EXAMPLES = r"""
 ---
 - name: Set a list of users
   ansible.builtin.set_fact:
@@ -104,13 +104,13 @@ EXAMPLES = '''
           column_alignments={'name': 'center', 'age': 'right', 'role': 'left'}
         )
       }}
-'''
+"""
 
-RETURN = '''
+RETURN = r"""
 _value:
   description: The formatted ASCII table.
   type: string
-'''
+"""
 
 try:
     import prettytable