edits

examples/channel-directions/channel-directions.go

@@ -1,7 +1,7 @@
 // When using channels as function parameters, you can
 // specify if a channel is meant to only send or receive
-// values. This specificity further increases the
+// values. This specificity increases the type-safety of
-// type-safety of the program.
+// the program.
 
 package main
 
@@ -15,7 +15,7 @@ func ping(pings chan<- string, msg string) {
 }
 
 // The `pong` function accepts one channel for receives
-// (`pings`) and a second for sends (`pongs`)
+// (`pings`) and a second for sends (`pongs`).
 func pong(pings <-chan string, pongs chan<- string) {
     msg := <-pings
     pongs <- msg

examples/channel-synchronization/channel-synchronization.go

@@ -13,7 +13,7 @@ import "time"
 func worker(done chan bool) {
     fmt.Print("working...")
     time.Sleep(time.Second)
-    fmt.Println(" done")
+    fmt.Println("done")
 
     // Send a value to notify that we're done.
     done <- true