Install ipycanvas from github for the documentation

martinRenou · martinRenou · commit 5008eb4f4f12 · 2019-09-18T21:44:11.000+02:00
diff --git a/docs/requirements.txt b/docs/requirements.txt
@@ -1 +1 @@
-ipycanvas
+git+https://github.com/martinRenou/ipycanvas@stable

Original file line number	Diff line number	Diff line change
`@@ -1 +1 @@`
`1`		`-ipycanvas`
	`1`	`+git+https://github.com/martinRenou/ipycanvas@stable`