add Go design patterns (#2752)

* add go design patterns list

* move to tutorials section

README.md

@@ -2357,6 +2357,7 @@ See [go-hardware](https://github.com/rakyll/go-hardware) for a comprehensive lis
 * [Go database/sql tutorial](http://go-database-sql.org/) - Introduction to database/sql.
 * [Go Playground for iOS](https://itunes.apple.com/us/app/go-playground/id1437518275?ls=1&mt=8) - Interactively edit & play Go snippets on your mobile device.
 * [Go WebAssembly Tutorial - Building a Simple Calculator](https://tutorialedge.net/golang/go-webassembly-tutorial/)
+* [go-patterns](https://github.com/tmrts/go-patterns) - Curated list of Go design patterns, recipes and idioms.
 * [Golang for Node.js Developers](https://github.com/miguelmota/golang-for-nodejs-developers) - Examples of Golang compared to Node.js for learning.
 * [Golangbot](https://golangbot.com/learn-golang-series/) - Tutorials to get started with programming in Go.
 * [Hackr.io](https://hackr.io/tutorials/learn-golang) - Learn Go from the best online golang tutorials submitted & voted by the golang programming community.