Fix typos in release notes

This is to fix below typos in release notes:
  ideintify
  currnt
  upating
  debuggin
  micoversion
  initisialisation

Change-Id: I48e8fcfbe4ed6a5d7a4c4056bd5de69ef5adebf0

releasenotes/notes/12/12.2.0-service_client_config-8a1d7b4de769c633.yaml

@@ -3,4 +3,4 @@ features:
   - A new helper method `service_client_config` has been added
     to the stable module config.py that returns extracts from
     configuration into a dictionary the configuration settings
-    relevant for the initisialisation of a service client.
+    relevant for the initialization of a service client.

releasenotes/notes/16/16.0.0-add-content-type-without-spaces-b2c9b91b257814f3.yaml

@@ -2,7 +2,7 @@
 upgrade:
   - The ``JSON_ENC`` and ``TXT_ENC`` option in the ``_error_checker``
     section have been added with additional content-type which are
-    defined in RFC7231 but missing in the currnt rest_client.py file.
+    defined in RFC7231 but missing in the current rest_client.py file.
     The lack of these additional content-type will cause defcore test
     to fail for OpenStack public cloud which uses tomcat module in the
     api gateway. The additions are ``application/json;charset=utf-8``,

releasenotes/notes/16/16.0.0-create-server-tags-client-8c0042a77e859af6.yaml

@@ -2,7 +2,7 @@
 features:
   - |
     Add server tags APIs to the servers_client library.
-    This feature enables the possibility of upating, deleting
+    This feature enables the possibility of updating, deleting
     and checking existence of a tag on a server, as well
     as updating and deleting all tags on a server.
 

releasenotes/notes/16/16.0.0-deprecate-resources-prefix-option-ad490c0a30a0266b.yaml

@@ -6,5 +6,5 @@ upgrade:
 deprecations:
   - The resources_prefix is marked as deprecated because it is
     enough to set 'tempest' as the prefix on rand_name() to
-    ideintify resources which are created by Tempest and no
+    identify resources which are created by Tempest and no
     projects set this option on OpenStack dev community.

releasenotes/notes/add-support-args-kwargs-in-call-until-true-a91k592h5a64exf7.yaml

@@ -2,4 +2,4 @@
 features:
   - Add support of args and kwargs when calling func in call_until_true,
     also to log the cost time when call_until_true returns True or False
-    for debuggin.
+    for debugging.

releasenotes/notes/compare-header-version-func-de5139b2161b3627.yaml

@@ -3,7 +3,7 @@ features:
   - |
     Add a new function called ``compare_version_header_to_response`` to
     ``tempest.lib.common.api_version_utils``, which compares the API
-    micoversion in the response header to another microversion using the
+    microversion in the response header to another microversion using the
     comparators defined in
     ``tempest.lib.common.api_version_request.APIVersionRequest``.