Fix QtFigure() docs.

bwoodsend · bwoodsend · commit c71ca408411a · 2022-05-11T19:47:05.000+01:00
diff --git a/docs/requirements.txt b/docs/requirements.txt
@@ -5,6 +5,7 @@ sphinx-autodoc-typehints==1.11.1
 sphinx-copybutton==0.3.3
 sphinxcontrib-websupport==1.1.0
 sphinx-rtd-theme==0.5.0
+pyqt5
 
 # Indirect dependencies.
 docutils==0.16
