fix(docs): repair invalid JSON in cli.ipynb table cell

The CLI command-table cell contained raw newline characters inside
JSON string literals (e.g. "| Command | Purpose |<LF>",) which is
invalid JSON. nbformat / nbval failed to parse the notebook, breaking
the docs and notebook test jobs:

  nbformat.reader.NotJSONError: Notebook does not appear to be JSON
  Invalid control character at: line 44 column 27

Replace the embedded newlines with the proper \n escape so each
markdown table row is a valid JSON string. nbval now collects the
notebook (13 cells) and make docs-build succeeds.

Author: nkanu17

docs/user_guide/cli.ipynb

@@ -41,36 +41,21 @@
     "## Commands\n",
     "The table below documents the current CLI tree. Use ``rvl index --help`` and ``rvl stats --help`` for detailed flag help and examples.\n",
     "\n",
-    "| Command | Purpose |
-",
-    "|---------|---------|
-",
-    "| `rvl version` | display the installed RedisVL version |
-",
-    "| `rvl index create` | create a new Redis search index from a schema YAML file |
-",
-    "| `rvl index info` | display schema and storage details for an index |
-",
-    "| `rvl index listall` | list Redis search indexes available on the target Redis deployment |
-",
-    "| `rvl index delete` | delete an index while leaving indexed data in Redis |
-",
-    "| `rvl index destroy` | delete an index and drop its indexed data |
-",
-    "| `rvl stats` | display statistics for an existing Redis search index |
-",
-    "| `rvl mcp` | run the RedisVL MCP server |
-",
-    "| `rvl migrate wizard` | interactively build a migration plan and schema patch (experimental) |
-",
-    "| `rvl migrate plan` | generate `migration_plan.yaml` from a patch or target schema (experimental) |
-",
-    "| `rvl migrate apply` | execute a reviewed `drop_recreate` migration (experimental) |
-",
-    "| `rvl migrate validate` | validate a completed migration and emit report artifacts (experimental) |
-",
-    "
-",
+    "| Command | Purpose |\n",
+    "|---------|---------|\n",
+    "| `rvl version` | display the installed RedisVL version |\n",
+    "| `rvl index create` | create a new Redis search index from a schema YAML file |\n",
+    "| `rvl index info` | display schema and storage details for an index |\n",
+    "| `rvl index listall` | list Redis search indexes available on the target Redis deployment |\n",
+    "| `rvl index delete` | delete an index while leaving indexed data in Redis |\n",
+    "| `rvl index destroy` | delete an index and drop its indexed data |\n",
+    "| `rvl stats` | display statistics for an existing Redis search index |\n",
+    "| `rvl mcp` | run the RedisVL MCP server |\n",
+    "| `rvl migrate wizard` | interactively build a migration plan and schema patch (experimental) |\n",
+    "| `rvl migrate plan` | generate `migration_plan.yaml` from a patch or target schema (experimental) |\n",
+    "| `rvl migrate apply` | execute a reviewed `drop_recreate` migration (experimental) |\n",
+    "| `rvl migrate validate` | validate a completed migration and emit report artifacts (experimental) |\n",
+    "\n",
     "Within data-plane commands, ``-i`` or ``--index`` targets an existing Redis index name and ``-s`` or ``--schema`` points to a schema YAML file. Shared Redis connection options such as ``--url``, ``--host``, and ``--port`` apply to ``rvl index`` and ``rvl stats``."
    ]
   },