added parametr enterprise (#20)

README.md

@@ -8,6 +8,7 @@ The easiest way to quickly integrate [2Captcha] into your code to automate solvi
   - [Text](#text-captcha)
   - [ReCaptcha v2](#recaptcha-v2)
   - [ReCaptcha v3](#recaptcha-v3)
+  - [reCAPTCHA Enterprise](#recaptcha-enterprise)
   - [FunCaptcha](#funcaptcha)
   - [GeeTest](#geetest)
   - [hCaptcha](#hcaptcha)
@@ -167,6 +168,34 @@ req.SetProxy("HTTPS", "login:password@IP_address:PORT")
 code, err := client.Solve(req)
 ```
 
+### reCAPTCHA Enterprise
+reCAPTCHA Enterprise can be used as reCAPTCHA V2 and reCAPTCHA V3. Below is a usage example for both versions.
+
+```go
+// reCAPTCHA V2
+cap :=  api2captcha.ReCaptcha({
+   SiteKey: "6Le-wvkSVVABCPBMRTvw0Q4Muexq1bi0DJwx_mJ-",
+   Url: "https://mysite.com/page/with/recaptcha",
+   Invisible: true,
+   Action: "verify",
+   Enterprise: true,
+})
+
+// reCAPTCHA V3
+cap := api2captcha.ReCaptcha{
+   SiteKey: "6Le-wvkSVVABCPBMRTvw0Q4Muexq1bi0DJwx_mJ-",
+   Url: "https://mysite.com/page/with/recaptcha",
+   Version: "v3",
+   Action: "verify",
+   Score: 0.3,
+   Enterprise: true,
+}
+
+req := cap.ToRequest()
+req.SetProxy("HTTPS", "login:password@IP_address:PORT")
+code, err := client.Solve(req)
+```
+
 ### FunCaptcha
 FunCaptcha (Arkoselabs) solving method. Returns a token.
 

api2captcha.go

@@ -122,6 +122,7 @@ type (
 		SiteKey   string
 		Url       string
 		Invisible bool
+		Enterprise bool
 		Version   string
 		Action    string
 		Score     float64
@@ -717,6 +718,9 @@ func (c *ReCaptcha) ToRequest() Request {
 	if c.Invisible {
 		req.Params["invisible"] = "1"
 	}
+	if c.Enterprise {
+		req.Params["enterprise"] = "1"
+	}
 	if c.Version != "" {
 		req.Params["version"] = c.Version
 	}