fix: README updated (#6)

README.md

@@ -1,11 +1,85 @@
 [![CI](https://github.com/r-goswami/email-validator/actions/workflows/CI.yaml/badge.svg)](https://github.com/r-goswami/email-validator/actions/workflows/CI.yaml)
 [![codecov](https://codecov.io/gh/r-goswami/email-validator/branch/main/graph/badge.svg?token=VAB3KVPV1P)](https://codecov.io/gh/r-goswami/email-validator)
 [![Go Report Card](https://goreportcard.com/badge/github.com/r-goswami/email-validator)](https://goreportcard.com/report/github.com/r-goswami/email-validator)
+[![Go Reference](https://pkg.go.dev/badge/github.com/r-goswami/email-validator.svg)](https://pkg.go.dev/github.com/r-goswami/email-validator)
 
 # email-validator
-Go library to verify email addresses through Email verification API provided by 3rd party services as abstractApi, hunter.io etc.
+Go library to verify email addresses through Email verification API provided by 3rd party services - abstractapi.com and hunter.io.
 
-# Trying out clients
+## Features
+
+- Completely native (no 3rd party module dependencies)
+- Client side rate limiting
+- Ability to change rate limits
+
+# How to use http clients
+
+## abstract.com client
+```go
+
+import (
+ "fmt"
+ "log"
+ "os"
+
+ emailvalidator "github.com/r-goswami/email-validator"
+)
+
+func main() {
+ apiKey := os.GetEnv("API_KEY")
+ validator, err := emailvalidator.NewAbstractAPIClient(apiKey)
+ if err != nil {
+ log.Panic(err)
+ }
+
+ email := "[email protected]"
+ resp, err := validator.Validate(email)
+ if err != nil {
+ fmt.Println(err)
+ return
+ }
+
+ if resp.IsValid() {
+ fmt.Printf("\n%s is a valid email\n", email)
+ }
+}
+
+```
+
+## hunter.io client
+```go
+
+import (
+ "fmt"
+ "log"
+ "os"
+
+ emailvalidator "github.com/r-goswami/email-validator"
+)
+
+func main() {
+ apiKey := os.GetEnv("API_KEY")
+ validator, err := emailvalidator.NewHunterAPIClient(apiKey)
+ if err != nil {
+ log.Panic(err)
+ }
+
+ email := "[email protected]"
+ resp, err := validator.Validate(email)
+ if err != nil {
+ fmt.Println(err)
+ return
+ }
+
+ if resp.IsValid() {
+ fmt.Printf("\n%s is a valid email\n", email)
+ }
+}
+
+```
+
+
+# How to check clients using commands
 
 ## abstract.com client
 ### Build