feat: document connectionId parameter for the iOS SDK

src/content/docs/developer-tools/sdks/native/ios-sdk.mdx

@@ -260,6 +260,41 @@ override func viewDidLoad() {
 }
 ```
 
+### Use custom auth pages
+
+You can use a custom sign-up and sign-in page by passing the `connectionId` parameter to the `login`, `register` and `createOrg` methods. 
+
+
+```swift
+KindeSDKAPI.auth.login(connectionId: CONNECTION_ID)
+
+KindeSDKAPI.auth.register(connectionId: CONNECTION_ID)
+
+KindeSDKAPI.auth.createOrg(connectionId: CONNECTION_ID)
+```
+
+See [Custom sign-up and sign-in pages](/authenticate/custom-configurations/custom-authentication-pages/) to learn more.
+
+#### Bypassing the Kinde initial login page
+
+To skip the initial Kinde login page, pass the `loginHint` and `connectionId` parameters to the `login` and `register` methods.
+
+```swift
+KindeSDKAPI.auth.login(
+	connectionId: CONNECTION_ID, 
+	loginHint: "alex@example.com"
+)
+
+KindeSDKAPI.auth.register(
+	connectionId: CONNECTION_ID, 
+	loginHint: "phone:+61466043123:au"
+)
+```
+
+This takes the user directly to the Kinde verification page, skipping the page where the user enters their identity, as the `loginHint` parameter [prepopulates the user identity](/authenticate/custom-configurations/prepopulate-identity-sign-in/).
+
+See [Step 3: Add the Connection ID to your design code](/authenticate/custom-configurations/custom-authentication-pages/#step-3-add-the-connection-id-to-your-design-code) of the "Custom sign-up and sign-in pages" page for more information.
+
 ## Handle redirect
 
 Once your user is redirected back to your site from Kinde (it means you’ve logged in successfully), use the `getToken` method from `KindeSDKAPI` class to get a user token from Kinde.
@@ -633,13 +668,17 @@ Constructs redirect url and sends user to Kinde to sign in.
 Arguments:
 
 ```swift
-orgCode?: String
+orgCode?: String, 
+loginHint?: String, 
+connectionId?: String
 ```
 
 Usage:
 
 ```swift
-KindeSDKAPI.auth.login(); or KindeSDKAPI.auth.login(orgCode: “your organization code”) //
+KindeSDKAPI.auth.login(); 
+// or 
+KindeSDKAPI.auth.login(orgCode: “your organization code”)
 ```
 
 Allow `orgCode` to be provided if a specific org is signed in to.
@@ -651,16 +690,22 @@ Constructs redirect url and sends user to Kinde to sign up.
 Arguments:
 
 ```swift
-orgCode?: String
+orgCode?: String, 
+loginHint?: String, 
+planInterest?: String,
+pricingTableKey?: String,
+connectionId?: String
 ```
 
 Usage:
 
 ```swift
-KindeSDKAPI.auth.register(); or KindeSDKAPI.auth.register(orgCode: “your organization code”) //
+KindeSDKAPI.auth.register();
+// or
+KindeSDKAPI.auth.register(orgCode: “your organization code”)
 ```
 
-Allow `orgCode` to be provided if a specific org is registered to.
+Allow `orgCode` to be provided if a specific org is registered to.
 
 ### `enablePrivateAuthSession`
 
@@ -705,7 +750,8 @@ Constructs a redirect URL and sends the user to Kinde to sign up and create a ne
 Arguments:
 
 ```swift
-orgName: String
+orgName: String, 
+connectionId?: String
 ```
 
 Usage: