Fix some queries in Gremlin language tutorials (#535)

Author: michaelnchin

src/graph_notebook/notebooks/06-Language-Tutorials/03-Gremlin/02-Loops-Repeats.ipynb

@@ -395,7 +395,8 @@
     "    .or(loops().is(2))\n",
     ")\n",
     ".path()\n",
-    ".by(elementMap())"
+    ".by(elementMap())\n",
+    ".limit(10)"
    ]
   },
   {
@@ -432,7 +433,8 @@
     ")\n",
     ".has(\"first_name\",\"Dave\")\n",
     ".path()\n",
-    ".by(elementMap())"
+    ".by(elementMap())\n",
+    ".limit(9)"
    ]
   },
   {
@@ -701,4 +703,4 @@
  },
  "nbformat": 4,
  "nbformat_minor": 5
-}
+}