Update readme.md

Author: Aashna-Agrawal

readme.md

@@ -543,6 +543,13 @@ go run command_line_arguments.go
 go run command_line_arguments.go -env=qa -consumer=true
 ```
 
+Cron Golang Example
+We can trigger a function at a particular time through cron 
+
+```Shell
+go run cron.go
+```
+
 ## Compile
 
 One great aspect of Golang is, that you can start go applications via ```go run name.go```, but also compile it to an executable with ```go build name.go```. After that you can start the compiled version which starts much faster.