[FLINK-31348][Docs] Fix unclosed shortcodes (/tabs) in the docs, that causes issues with Hugo version 0.111.0 and higher. This closes #22113

(cherry picked from commit 3ea83baad0c8413f8e1f4a027866335d13789538)
diff --git a/docs/content.zh/docs/dev/datastream/experimental.md b/docs/content.zh/docs/dev/datastream/experimental.md
index aaeae8b..d006d01 100644
--- a/docs/content.zh/docs/dev/datastream/experimental.md
+++ b/docs/content.zh/docs/dev/datastream/experimental.md
@@ -81,5 +81,7 @@
   .addSink(new DiscardingSink[Int])
 env.execute()
 ```
+{{< /tab >}}
+{{< /tabs >}}
 
 {{< top >}}
diff --git a/docs/content/docs/connectors/table/formats/debezium.md b/docs/content/docs/connectors/table/formats/debezium.md
index e03a153..e025ac4 100644
--- a/docs/content/docs/connectors/table/formats/debezium.md
+++ b/docs/content/docs/connectors/table/formats/debezium.md
@@ -418,6 +418,7 @@
 </table>
 
 {{< /tab >}}
+{{< /tabs >}}
 
 Caveats
 ----------------
diff --git a/docs/content/docs/dev/datastream/experimental.md b/docs/content/docs/dev/datastream/experimental.md
index 75c1c47..ebfe555 100644
--- a/docs/content/docs/dev/datastream/experimental.md
+++ b/docs/content/docs/dev/datastream/experimental.md
@@ -81,5 +81,7 @@
   .addSink(new DiscardingSink[Int])
 env.execute()
 ```
+{{< /tab >}}
+{{< /tabs >}}
 
 {{< top >}}