fix: sync sentinel1_stats udp description with the markdown docs

openeo_udp/sentinel1_stats/sentinel1_stats.json

@@ -150,7 +150,7 @@
   },
   "id": "sentinel1_stats",
   "summary": "Calculate Sentinel-1 SAR stats",
-  "description": "Calculate S1 SAR stats (min, max, mean, sd, q10, q50, q90). \n\nThis service can cost an approximate of 3-5 credits per sq km. \nThis cost is based on resource consumption only and added-value cost has not been included.\n",
+  "description": "# Description\n\nThis algorithm derives temporal statistics from the Sentinel-1 GRD collection for the selected spatial- and temporal extent of interest. In order to calibrate the SAR backscatter signal, `sigma0-ellipsoid` has been applied within this workflow.\n\n# Performance characteristics\nThe algorithm was evaluated for a spatial extent of 20x20km, for a temporal period of 3 months. The total cost for the performed evaluation was equal to 4 credits, thereby highlighting the efficiency of the underlying algorithm.\n\n# Examples\n\nBelow we show the derived minimum and maximum values for both VV and VH bands, calculated for the 20x20 km2 area of interest.\n\n![s1_stats](./sentinel1.png)",
   "parameters": [
     {
       "name": "spatial_extent",