Improving links (http -> https) (#425)

examples/http-clients/http-clients.go

@@ -17,7 +17,7 @@ func main() {
 	// object and calling its `Get` method; it uses the
 	// `http.DefaultClient` object which has useful default
 	// settings.
-	resp, err := http.Get("http://gobyexample.com")
+	resp, err := http.Get("https://gobyexample.com")
 	if err != nil {
 		panic(err)
 	}

examples/http-clients/http-clients.hash

@@ -1,2 +1,2 @@
-fbc80f8cfcd34e9daa3c52c23f6720f6ef7019dc
-kHCcVLoz7nd
+1497e193431e4740f593039f613773daaf97772e
+vFW_el7oHMk