docs: fix naver_search description at https://python.langchain.com/docs/integrations/tools/ All tools section (#31426)

…cs/integrations/tools/ All tools section

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Author: MichaelLi65535

docs/docs/integrations/tools/naver_search.ipynb

@@ -7,7 +7,7 @@
    "source": [
     "# Naver Search\n",
     "\n",
-    "## Overview\n",
+    "The Naver Search Tool provides a simple interface to search Naver and get results.\n",
     "\n",
     "### Integration details\n",
     "\n",