further cleanup of UUID

Author: dimitri-yatsenko

book/30-database-design/025-uuid.ipynb

@@ -4,9 +4,9 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "# UUIDs in DataJoint\n",
+    "# UUIDs\n",
     "\n",
-    "This chapter demonstrates how to use **Universally Unique Identifiers (UUIDs)** as primary keys in DataJoint tables. \n",
+    "This chapter demonstrates how to use **Universally Unique Identifiers (UUIDs)** in DataJoitn tables. \n",
     "\n",
     "For the conceptual foundation on primary keys and when to use surrogate keys like UUIDs, see [Primary Keys](020-primary-key.md). That chapter covers:\n",
     "- What primary keys are and why they matter\n",