remove number for source

src/channels/channels.go

@@ -0,0 +1,12 @@
+// ## Channels
+
+package main
+
+import "fmt"
+
+func main() {
+    var messages chan string = make(chan string)
+    go func() { messages <- "ping" }()
+    msg := <-messages
+    fmt.Println(msg)
+}