[hotfix][docs] Reverse paragraphs in cli.md to cli enumeration (apach…

…e#7443)

The markdown treats the TOC as the last item in CLI use list, thus this list could not be shown properly. This PR revert the two paragraph to fix this issue.

docs/ops/cli.md

@@ -30,11 +30,6 @@ distributed setups. It is located under `<flink-home>/bin/flink`
 and connects by default to the running Flink master (JobManager) that was
 started from the same installation directory.
 
-A prerequisite to using the command line interface is that the Flink
-master (JobManager) has been started (via
-`<flink-home>/bin/start-cluster.sh`) or that a YARN environment is
-available.
-
 The command line can be used to
 
 - submit jobs for execution,
@@ -44,6 +39,11 @@ The command line can be used to
 - trigger and dispose savepoints, and
 - modify a running job
 
+A prerequisite to using the command line interface is that the Flink
+master (JobManager) has been started (via
+`<flink-home>/bin/start-cluster.sh`) or that a YARN environment is
+available.
+
 * This will be replaced by the TOC
 {:toc}