[AIRFLOW-6537] Fix backticks in rst files (#7140)

.pre-commit-config.yaml

@@ -151,7 +151,7 @@ repos:
       - id: check-xml
       - id: trailing-whitespace
   - repo: https://github.com/pre-commit/pygrep-hooks
-    rev: v1.4.2
+    rev: v1.4.4
     hooks:
       - id: rst-backticks
       - id: python-no-log-warn

docs/security.rst

@@ -439,7 +439,7 @@ Basic authentication for Celery Flower is supported.
 
 You can specify the details either as an optional argument in the Flower process launching
 command, or as a configuration item in your ``airflow.cfg``. For both cases, please provide
-`user:password` pairs separated by a comma.
+``user:password`` pairs separated by a comma.
 
 .. code-block:: bash
 
@@ -542,7 +542,7 @@ The first time Airflow is started, the ``airflow.cfg`` file is generated with th
 key. The key is saved to option ``fernet_key`` of section ``[core]``.
 
 You can also configure a fernet key using environment variables. This will overwrite the value from the
-`airflow.cfg` file
+``airflow.cfg`` file
 
     .. code-block:: bash
 

docs/usage-cli.rst

@@ -147,7 +147,7 @@ The following file formats are supported:
  * ``x11``.
 
 By default, the application search for DAGs in the directory specified in ``dags_folder`` option in
-`[core]` section specified in the file ``airflow.cfg``. You can change it with the ``--subdir`` switch.
+``[core]`` section specified in the file ``airflow.cfg``. You can change it with the ``--subdir`` switch.
 
 Display DAGs structure
 ----------------------