Fix #56 -- Add graphviz binary dependency to rtfd builds

codingjoe · codingjoe · commit 347901fff064 · 2022-10-14T13:24:19.000+02:00
diff --git a/.readthedocs.yaml b/.readthedocs.yaml
@@ -8,6 +8,8 @@ build:
   os: ubuntu-20.04
   tools:
     python: "3.9"
+  apt_packages:
+    - graphviz
 
 sphinx:
   configuration: docs/conf.py
