docs: update 49_External_database_integration.ipynb

Creat -> Create

examples/49_External_database_integration.ipynb

@@ -428,7 +428,7 @@
       "source": [
         "import txtai\n",
         "\n",
-        "# Creat embeddings\n",
+        "# Create embeddings\n",
         "embeddings = txtai.Embeddings(\n",
         "    keyword=True,\n",
         "    content=\"postgresql+psycopg2://postgres:postgres@localhost/postgres\",\n",
@@ -799,4 +799,4 @@
   },
   "nbformat": 4,
   "nbformat_minor": 0
-}
+}