add requirements.txt under docs dir. (AtsushiSakai#611)

AtsushiSakai · web-flow · commit ea7a52a83561 · 2021-12-26T11:10:33.000+09:00
diff --git a/docs/requirements.txt b/docs/requirements.txt
@@ -0,0 +1,3 @@
+sphinx < 4.0 # For sphinx documentation
+sphinx_rtd_theme == 1.0.0
+IPython == 7.30.1 # For sphinx documentation

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,3 @@`
	`1`	`+sphinx < 4.0 # For sphinx documentation`
	`2`	`+sphinx_rtd_theme == 1.0.0`
	`3`	`+IPython == 7.30.1 # For sphinx documentation`