Update pt-k8s-psmdb-summary.rst

Formatting, spelling

docs/pt-k8s-psmdb-summary.rst

@@ -2,52 +2,56 @@
 Debug collector tool
 ==================================
 
-Collects debug data (logs, resource statuses etc.) from a k8s/opeshift cluster. Data packed into "cluster-dump.tar.gz" archive in the current working directory. 
+Collects debug data (logs, resource statuses etc.) from a k8s/OpenShift cluster. Data is packed into the ``cluster-dump.tar.gz`` archive in the current working directory. 
 
 Data that will be collected
-====
+===========================
+
 .. code-block:: bash
 
-    "pods",
-		"replicasets",
-		"deployments",
-		"statefulsets",
-		"replicationcontrollers",
-		"events",
-		"configmaps",
-		"secrets",
-		"cronjobs",
-		"jobs",
-		"podsecuritypolicies",
-		"poddisruptionbudgets",
-		"perconaxtradbbackups",
-		"perconaxtradbclusterbackups",
-		"perconaxtradbclusterrestores",
-		"perconaxtradbclusters",
-		"clusterrolebindings",
-		"clusterroles",
-		"rolebindings",
-		"roles",
-		"storageclasses",
-		"persistentvolumeclaims",
-		"persistentvolumes",
-        "modes",
-        "your-custom-resource" (depend on 'resource'  flag)
+   "pods",
+   "replicasets",
+   "deployments",
+   "statefulsets",
+   "replicationcontrollers",
+   "events",
+   "configmaps",
+   "secrets",
+   "cronjobs",
+   "jobs",
+   "podsecuritypolicies",
+   "poddisruptionbudgets",
+   "perconaxtradbbackups",
+   "perconaxtradbclusterbackups",
+   "perconaxtradbclusterrestores",
+   "perconaxtradbclusters",
+   "clusterrolebindings",
+   "clusterroles",
+   "rolebindings",
+   "roles",
+   "storageclasses",
+   "persistentvolumeclaims",
+   "persistentvolumes",
+   "modes",
+   "your-custom-resource" (depends on 'resource' flag)
 
 
 Usage
-----
+=====
 
-.. code-block:: bash
+``pt-k8s-debug-collector <flags>``
 
-`pt-k8s-debug-collector <flags>`
 Flags:
-    `--resource` targeted custom resource name (default "pxc")
-    `--namespace` targeted namespace. By default data will be collected from all namespaces
-    `--cluster` targeted pxc/psmdb cluster. By default data from all available clusters to be collected 
+
+``--resource` targeted custom resource name (default "pxc")``
+
+``--namespace` targeted namespace. By default data will be collected from all namespaces``
+
+``--cluster` targeted pxc/psmdb cluster. By default data from all available clusters to be collected``
 
 Requirements
-----
-Installed and configured 'kubectl'
-Installed and configured 'pt-mysql-summary'
-Installed and configured 'pt-mongodb-summary' 
+============
+
+- Installed and configured ``kubectl``
+- Installed and configured ``pt-mysql-summary``
+- Installed and configured ``pt-mongodb-summary``