updated README

README.md

@@ -1,3 +1,10 @@
-# trying_out_go
+# My Personal Go Playground 
 
-Playing with Golang mostly using the Head First Go book.
+Playing with Golang mostly using the Head First Go book.
+
+Entry point is playground.go.
+
+To run use
+```sh
+go run trying_out_go
+```