diff --git a/OAuth2.md b/OAuth2.md
index c7b311f..d42847a 100644
--- a/OAuth2.md
+++ b/OAuth2.md
@@ -1,11 +1,15 @@
+OAuth2 purpose
+
+A way for the `user` to tell `google` to give an access token to `xorismesiti.gr` app
+
 OAuth2 Flow:
 
-1. **User clicks** "Login with Google" on your platform (xorismesiti.gr).
-2. **Authorization Request**: Redirect to Google's authorization endpoint, requesting the user's profile and email.
+1. **User clicks** "Login with Google" on your platform `xorismesiti.gr`
+2. **Authorization Request**: Redirect to Google's authorization endpoint `accounts.google.com/o/oauth2`, requesting the user's data
 3. **User Login and Consent**: User logs in to Google and grants permissions.
-4. **Authorization Code Response**: Google redirects back to your platform with an authorization code.
+4. **Authorization Code Response**: Google redirects back to your platform `xorismesiti.gr/callback` with an authorization code.
 5. **Access Token Request**: Exchange the authorization code for an access token.
-6. **Access Protected Resources**: Use the access token to fetch the user's Google profile and email.
+6. **Access Protected Resources**: Use the access token to fetch the user's Google profile and email from `googleapis.com/oauth2`
 7. **Token Refresh** (Optional): If the token expires, use the refresh token to get a new access token.
 
 # 1. Authorization Request (User Initiates Login)