Update step4.md

Splaktar · Splaktar · commit a8f729819bc4 · 2016-04-16T11:12:35.000-04:00
diff --git a/step4.md b/step4.md
@@ -1,4 +1,4 @@
-# Create a Docker container image
+# 4. Create a Docker container image
 
 Estimated time: 50 min remaining
 

Original file line number	Diff line number	Diff line change
`@@ -1,4 +1,4 @@`
`1`		`-# Create a Docker container image`
	`1`	`+# 4. Create a Docker container image`
`2`	`2`
`3`	`3`	`Estimated time: 50 min remaining`
`4`	`4`