Second try with %3 fix. Replaced markdown with html link.

Author: milanavuckovic

opencharts/medium-2t-dp.ipynb

@@ -43,7 +43,7 @@
    "id": "dfcf6b01-72e4-43f6-9570-a57c25f6d83c",
    "metadata": {},
    "source": [
-    "The full list of available Open data products can be found [here](https://www.ecmwf.int/en/forecasts/datasets/open-data), and more information can be found in the [User documentation](<https://confluence.ecmwf.int/display/DAC/ECMWF+open+data%3A+real-time+forecasts+from+IFS+and+AIFS>).  \n",
+    "The full list of available Open data products can be found [here](https://www.ecmwf.int/en/forecasts/datasets/open-data), and more information can be found in the <a href=\"https://confluence.ecmwf.int/display/DAC/ECMWF+open+data%3A+real-time+forecasts+from+IFS+and+AIFS\">User documentation</a>.  \n",
     "\n",
     "Access to ECMWF Open data is governed by the Creative Commons CC-BY-4.0 licence and associated [Terms of Use](https://apps.ecmwf.int/datasets/licences/general/).  \n",
     "\n",