Update annoy.ipynb (#23970)

mmemory in the description -> memory (corrected spelling mistake)

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docs/docs/integrations/vectorstores/annoy.ipynb

@@ -7,7 +7,7 @@
    "source": [
     "# Annoy\n",
     "\n",
-    "> [Annoy](https://github.com/spotify/annoy) (`Approximate Nearest Neighbors Oh Yeah`) is a C++ library with Python bindings to search for points in space that are close to a given query point. It also creates large read-only file-based data structures that are mmapped into memory so that many processes may share the same data.\n",
+    "> [Annoy](https://github.com/spotify/annoy) (`Approximate Nearest Neighbors Oh Yeah`) is a C++ library with Python bindings to search for points in space that are close to a given query point. It also creates large read-only file-based data structures that are mapped into memory so that many processes may share the same data.\n",
     "\n",
     "You'll need to install `langchain-community` with `pip install -qU langchain-community` to use this integration\n",
     "\n",