Windows: Fix documentation strings to be raw strings (#20301)

* Windows: Fix documentation strings to be raw strings

Especially when using Windows paths they easily get confused as escaped
sequences or unicode characters. So by default use raw strings

This fixes #20295

* Fixed as hinted by @abadger

And some trailing whitespace fixes.

lib/ansible/modules/windows/win_uri.py

@@ -25,7 +25,7 @@ ANSIBLE_METADATA = {'status': ['preview'],
                     'supported_by': 'community',
                     'version': '1.0'}
 
-DOCUMENTATION = """
+DOCUMENTATION = r'''
 ---
 module: win_uri
 version_added: "2.1"
@@ -73,9 +73,9 @@ options:
       - False
     default: True
 author: Corwin Brown (@blakfeld)
-"""
+'''
 
-EXAMPLES = """
+EXAMPLES = r'''
 - name: Perform a GET and Store Output
   win_uri:
     url: http://example.com/endpoint
@@ -99,9 +99,9 @@ EXAMPLES = """
     url: http://www.somesite.com
     method: POST
     body: "{ 'some': 'json' }"
-"""
+'''
 
-RETURN = """
+RETURN = r'''
 url:
   description: The Target URL
   returned: always
@@ -153,4 +153,4 @@ raw_content_length:
   returned: success
   type: int
   sample: 54447
-"""
+'''