fix the documentation index page (#178)

keewis · web-flow · commit 06e5eaf7e88b · 2022-07-27T11:59:32.000+02:00
* pin sphinx_rtd_theme

* bump versions in the RTD configuration [skip-ci]
diff --git a/.readthedocs.yaml b/.readthedocs.yaml
@@ -1,9 +1,9 @@
 version: 2
 
 build:
-  os: ubuntu-20.04
+  os: ubuntu-22.04
   tools:
-    python: "3.9"
+    python: "3.10"
 
 python:
   install:
diff --git a/docs/requirements.txt b/docs/requirements.txt
@@ -4,7 +4,7 @@ pooch
 netCDF4
 cf-xarray>=0.6
 sphinx
-sphinx_rtd_theme
+sphinx_rtd_theme>=1.0
 ipython
 ipykernel
 jupyter_client
