docs: ls similar examples header (#25642)

docs/docs/how_to/example_selectors_langsmith.ipynb

@@ -116,6 +116,8 @@
    "id": "5767d171",
    "metadata": {},
    "source": [
+    "## Querying dataset\n",
+    "\n",
     "Indexing can take a few seconds. Once the dataset is indexed, we can search for similar examples. Note that the input to the `similar_examples` method must have the same schema as the examples inputs. In this case our example inputs are a dictionary with a \"question\" key:"
    ]
   },
@@ -223,6 +225,8 @@
    "id": "e852c8ef",
    "metadata": {},
    "source": [
+    "## Creating dynamic few-shot prompts\n",
+    "\n",
     "The search returns the examples whose inputs are most similar to the query input. We can use this for few-shot prompting a model like so:"
    ]
   },