Fix in tutorials/catalog.ipynb
"cell_type": "markdown",
"metadata": {},
"source": [
- "# Select a source\n",
+ "## Select a source\n",
"\n",
"To create a source object, index into the catalog using `[]`, passing a catalog table row index (zero-based, first row is `[0]`), or a source name. If passing a name, catalog table columns with source names and association names (\"ASSOC1\" in the example below) are searched top to bottom. There is no name resolution web query."
]
