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/monitoring/librato_annotation.py

@@ -52,11 +52,11 @@ options:
         required: false
     start_time:
         description:
-            - The unix timestamp indicating the the time at which the event referenced by this annotation started
+            - The unix timestamp indicating the time at which the event referenced by this annotation started
         required: false
     end_time:
         description:
-            - The unix timestamp indicating the the time at which the event referenced by this annotation ended
+            - The unix timestamp indicating the time at which the event referenced by this annotation ended
             - For events that have a duration, this is a useful way to annotate the duration of the event
         required: false
     links:

lib/ansible/modules/monitoring/monit.py

@@ -35,7 +35,7 @@ options:
   timeout:
     description:
       - If there are pending actions for the service monitored by monit, then Ansible will check
-        for up to this many seconds to verify the the requested action has been performed.
+        for up to this many seconds to verify the requested action has been performed.
         Ansible will sleep for five seconds between each check.
     required: false
     default: 300