Fix trailing space in ec2_vol example, fix 'the the' typos (#28440)

* Fix 'the the' typos, fix 'pahting' filename typo

* Change 'the the' typos to a single 'the'.
* Change `playbook_pahting.rst` to `playbook_pathing.rst`.

* Delete trailing space in ec2_vol example

Delete the trailing space in `instance: "{{ item.id }} "`, which makes the
example fail when run because it looks for instance "i-xxxx ".

lib/ansible/modules/cloud/amazon/ec2_vol.py

@@ -151,7 +151,7 @@ EXAMPLES = '''
     count: 3
   register: ec2
 - ec2_vol:
-    instance: "{{ item.id }} "
+    instance: "{{ item.id }}"
     volume_size: 5
   with_items: "{{ ec2.instances }}"
   register: ec2_vol