Merge pull request #265 from ecmwf/docs/update_trajectory

Update trajectory docs and example with new interface

Author: mathleur

docs/Service/Examples/timeseries_example.ipynb

@@ -38,7 +38,7 @@
     "    \"step\": \"0/to/360\",\n",
     "    \"feature\" : {\n",
     "        \"type\" : \"timeseries\",\n",
-    "        \"points\": LOCATION,\n",
+    "        \"points\": [[LOCATION[0], LOCATION[1]]],\n",
     "        \"axes\": \"step\",\n",
     "    },\n",
     "}\n",