build: use sphinx 1.8.6 instead of latest 8.2.6 (#358)

weizhouapache · web-flow · commit 7942423a6346 · 2023-11-15T11:35:36.000+01:00
diff --git a/requirements.txt b/requirements.txt
@@ -1 +1,5 @@
 docutils<0.18
+sphinx<2
+sphinx-rtd-theme<0.5
+readthedocs-sphinx-ext<2.3
+jinja2<3.1.0
