Update docs

docs/source/index.rst

@@ -23,7 +23,13 @@ Welcome to the ampycloud documentation
   A visual illustration of the algorithm is visible in :numref:`fig-demo`.
 
   .. note::
-    At the moment, ampycloud cannot use backscatter profiles to derive cloud base hits independantly.
+    At the moment, ampycloud **cannot** use backscatter profiles to derive cloud base hits independantly.
+
+  .. note::
+    ampycloud does not challenge the quality/nature of the cloud base hits that it is being provided.
+    It trusts them all fully and equally. The capacity of the algorithm to provide an accurate
+    assessment of cloud layers above an aerodrome is thus directly limited by the ability of
+    ceilometers to report clouds up to the aerodrome's Minimum Sector Altitude in the first place.
 
 * **Where:** ampycloud lives in `a dedicated repository <https://github.com/MeteoSwiss/ampycloud>`_
   under the `MeteoSwiss organization <https://github.com/MeteoSwiss>`_ on Github, where you can