Added content on Go Structs (#21425)

guide/english/go/structs/index.md

@@ -3,8 +3,40 @@ title: Go Structs
 ---
 ## Go Structs
 
-Go’s structs are typed collections of fields. They’re useful for grouping data together to form records.
+Go's struct helps in grouping similar data together. It helps in creating custom types apart from the primitive data types. When we create a struct, we can use it the same way as we can use a primitive data type. Just like we have classes in Java and other object oriented programming languages, we have structs in golang. Using structs we can model real world entities.
 
+In the below code, a struct named person is defined with name, age, gender and profession fields. Keyword type introduces a new type.
+
+```go
+type Person struct {
+  name string
+  age int
+  gender string
+  profession string
+}
+```
+
+### Initialization
+
+`lobster := new(Person)`  
+This statement will allocate memory for all the fields of the struct and and return a pointer to that memory location. All the values are initialised to zero values or default values.
+Sometimes, we want to initialize the struct with pre-defined values. We can do this by:  
+`john := Person{"John", 23, "Male", "Developer"}`  
+Keep note of the fact that the fields should be in the same order as we have defined above.
+
+If you don't want to keep a track of the order, you can use the following syntax:  
+`mary := Person{name: "Mary", age: 26, profession: "Teacher", gender: "Female"}`
+
+### Accessing Field values
+
+We can use the `.` operator to access the fields in a struct.  
+`john := Person{"John", 23, "Male", "Developer"}`  
+`fmt.Println(john.name)`  
+This statement will print John.
+
+To modify a field:  
+`john.age = 25`
 
 #### More Information:
-<!-- Please add any articles you think might be helpful to read before writing the article -->
+* [Refer here for a quick introduction](https://gobyexample.com/structs)
+* [JSON encoding using Go structs](https://gobyexample.com/json)