Add explicit docs requirements

nicoddemus · nicoddemus · commit 878296e34943 · 2023-10-19T11:46:49.000-03:00
ReadTheDocs no longer installs rtd-theme by default in its virtual environments, so we
need to explicitly install it.
diff --git a/.readthedocs.yml b/.readthedocs.yml
@@ -11,3 +11,4 @@ sphinx:
 python:
   install:
     - path: .
+    - requirements: docs/requirements.txt
diff --git a/docs/requirements.txt b/docs/requirements.txt
@@ -0,0 +1,2 @@
+sphinx
+sphinx-rtd-theme
