Correct weblinks formats in tutorial

Author: luseverin

doc/tutorial/climada_entity_Exposures_polygons_lines.ipynb

@@ -39,7 +39,7 @@
     "### OSM-flex\n",
     "Here we illustrate how to obtain exposure data as lines and polygons using the `osm-flex`\n",
     "module. `osm-flex` is a python package which allows to flexibly extract data from OpenStreetMap.\n",
-    "See https://osm-flex.readthedocs.io/en/latest/?badge=latest and the associated publication \n",
+    "See [osm-flex](https://osm-flex.readthedocs.io/en/latest/?badge=latest) and the associated publication \n",
     "for more information: *Mühlhofer, Kropf, Riedel, Bresch and Koks: OpenStreetMap for Multi-Faceted Climate Risk Assessments. Environ. Res. Commun. **6** 015005 doi: [10.1088/2515-7620/ad15ab](https://iopscience.iop.org/article/10.1088/2515-7620/ad15ab)*  \n",
     "We first show how to obtain road network exposure as lines for the country\n",
     "of Honduras by indirectly querying the OpenStreetMap data API via the `osm-flex` module.\n",
@@ -270,7 +270,7 @@
    "source": [
     "### OSMApiQuery\n",
     "To download and process data using `OSMApiQuery` methods from the `Exposures.osm_dataloader` module \n",
-    "available in CLIMADA petals please refer to the online documentation at https://climada-petals.readthedocs.io/en/stable/tutorial/climada_exposures_openstreetmap.html."
+    "available in CLIMADA petals please refer to the [online documentation](https://climada-petals.readthedocs.io/en/stable/tutorial/climada_exposures_openstreetmap.html)."
    ]
   },
   {