Fix links in tutorials.catalog.ipynb
"\n",
"In this tutorial we will show examples using the following catalogs:\n",
"\n",
- "- `~gammapy.catalogs.SourceCatalogHGPS`\n",
- "- `~gammapy.catalogs.SourceCatalogGammaCat`\n",
- "- `~gammapy.catalogs.SourceCatalog3FHL`\n",
- "- `~gammapy.catalogs.SourceCatalog4FGL`\n",
+ "- `~gammapy.catalog.SourceCatalogHGPS`\n",
+ "- `~gammapy.catalog.SourceCatalogGammaCat`\n",
+ "- `~gammapy.catalog.SourceCatalog3FHL`\n",
+ "- `~gammapy.catalog.SourceCatalog4FGL`\n",
"\n",
"All catalog and source classes work the same, as long as some information is available. E.g. trying to access a lightcurve from a catalog and source that doesn't have that information will return ``None``.\n",
"\n",
