Fix Auth Docs (#375)

* add oauth docs

* update docs

* revert code cahnges

* update docs

* sort env

* update docs

* fix docs headings

Author: aryanmehrotra

docs/advanced-guide/http-authentication/page.md

@@ -119,11 +119,11 @@ func main() {
 }
 ```
 
-### Adding Basic Authentication to HTTP Services
+### Adding API-KEY Authentication to HTTP Services
 This code snippet demonstrates how to add API Key authentication to an HTTP service in GoFr and make a request with the appropriate Authorization header:
 
 ```go
-app.AddHTTPService("http-server-using-redis", "http://localhost:8000", &service.APIKeyAuth{APIKey: "9221e451-451f-4cd6-a23d-2b2d3adea9cf"})
+app.AddHTTPService("http-server-using-redis", "http://localhost:8000", &service.APIKeyConfig{APIKey: "9221e451-451f-4cd6-a23d-2b2d3adea9cf"})
 ```
 
 ## 3. OAuth 2.0
@@ -146,7 +146,7 @@ Use `EnableOAuth(jwks-endpoint,refresh_interval)` to configure Gofr with pre-def
 func main() {
 	app := gofr.New()
 
-	app.EnableOAuth("http://jwks-endpoint", 20) // Replace with your credentials
+	app.EnableOAuth("http://jwks-endpoint", 20) 
 
 	app.GET("/protected-resource", func(c *gofr.Context) (interface{}, error) {
 		// Handle protected resource access 
@@ -157,7 +157,7 @@ func main() {
 }
 ```
 
-### Adding Basic Authentication to HTTP Services
+### Adding OAuth Authentication to HTTP Services
 For server-to-server communication it follows two-legged OAuth, also known as "client credentials" flow,
 where the client application directly exchanges its own credentials (ClientID and ClientSecret)
 for an access token without involving any end-user interaction.
@@ -166,7 +166,7 @@ This code snippet demonstrates how two-legged OAuth authentication is added to a
 
 ```go
 a.AddHTTPService("orders", "http://localhost:9000",
-    &service.OAuthConfig{
+    &service.OAuthConfig{   // Replace with your credentials
     ClientID:     "0iyeGcLYWudLGqZfD6HvOdZHZ5TlciAJ",
     ClientSecret: "GQXTY2f9186nUS3C9WWi7eJz8-iVEsxq7lKxdjfhOJbsEPPtEszL3AxFn8k_NAER",
     TokenURL:     "https://dev-zq6tvaxf3v7p0g7j.us.auth0.com/oauth/token",

examples/http-server-using-redis/configs/.env

@@ -1,8 +1,9 @@
 APP_NAME=sample-api
 HTTP_PORT=8000
 
-LOG_LEVEL=DEBUG
-
 REDIS_HOST=localhost
 REDIS_PORT=2002
 
+LOG_LEVEL=DEBUG
+
+