add Go orms introduction (#2363)

* add Go orms introduction

* Update content/roadmaps/109-golang/content/103-go-orms/readme.md

* Update content/roadmaps/109-golang/content/103-go-orms/readme.md

Co-authored-by: Kamran Ahmed <kamranahmed.se@gmail.com>

content/roadmaps/109-golang/content/103-go-orms/readme.md

@@ -1 +1,5 @@
-# Go orms
+# ORMs
+
+Object–relational mapping (ORM, O/RM, and O/R mapping tool) in computer science is a programming technique for converting data between type systems using object-oriented programming languages. This creates, in effect, a "virtual object database", hence a layer of abstraction, that can be used from within the programming language.
+
+Most common ORM library in Go is [GORM](https://gorm.io/).