chore: remove api docs from readme (#36)

* chore: remove api docs from readme

* chore: update docs link

Author: ctran88

README.md

@@ -55,157 +55,7 @@ let passage_flex = PassageFlex::new(
 
 ### Go Passwordless
 
-Find more details about Passkey Flex on our [Passkey Flex Documentation](https://docs.passage.id/flex) and [Docs.rs](https://docs.rs/passage_flex/latest/passage_flex/) pages.
-
-## API Reference
-
-### Create a Registration Transaction
-
-To create a transaction to start a user passkey registration, use the `create_register_transaction` method.
-
-```rust
-use passage_flex::PassageFlex;
-
-let passage_flex = PassageFlex::new(
-    std::env::var("PASSAGE_APP_ID").unwrap(),
-    std::env::var("PASSAGE_API_KEY").unwrap(),
-);
-
-let external_id = "a unique immutable string that represents your user".to_string();
-let passkey_display_name =
-    "the label for the user's passkey that they will see when logging in".to_string();
-
-let transaction = passage_flex
-    .auth
-    .create_register_transaction(external_id, passkey_display_name)
-    .await
-    .unwrap();
-```
-
-### Create an Authentication Transaction
-
-To create a transaction to start a user passkey authentication, use the `create_authenticate_transaction` method.
-
-```rust
-use passage_flex::PassageFlex;
-
-let passage_flex = PassageFlex::new(
-    std::env::var("PASSAGE_APP_ID").unwrap(),
-    std::env::var("PASSAGE_API_KEY").unwrap(),
-);
-
-let external_id = "a unique immutable string that represents your user".to_string();
-
-let transaction = passage_flex
-    .auth
-    .create_authenticate_transaction(external_id)
-    .await
-    .unwrap();
-```
-
-## Verify a Nonce
-
-To verify a nonce that you received from the end of of passkey registration or authentication ceremony, use the `verify_nonce` method.
-
-```rust
-use passage_flex::PassageFlex;
-
-let passage_flex = PassageFlex::new(
-    std::env::var("PASSAGE_APP_ID").unwrap(),
-    std::env::var("PASSAGE_API_KEY").unwrap(),
-);
-
-let nonce =
-    "a unique single-use value received from the client after a passkey ceremony".to_string();
-
-match passage_flex.auth.verify_nonce(nonce).await {
-    Ok(external_id) => {
-        // use external_id to do things like generate and send your own auth token
-    }
-    Err(err) => {
-        // nonce was invalid or unable to be verified
-    }
-}
-```
-
-## Retrieve User Info
-
-To retrieve information about a user by their external ID -- which is the unique, immutable ID you supply to associate the Passage user with your user -- use the `get` method.
-
-```rust
-use passage_flex::PassageFlex;
-
-let passage_flex = PassageFlex::new(
-    std::env::var("PASSAGE_APP_ID").unwrap(),
-    std::env::var("PASSAGE_API_KEY").unwrap(),
-);
-
-// this is the same value used when creating a transaction
-let external_id = your_user.id;
-
-// get user info
-let passage_user = passage_flex.user.get(external_id).await.unwrap();
-println!("{:?}", passage_user.webauthn_devices);
-```
-
-## Retrieve a user's passkey devices
-
-To retrieve information about a user's passkey devices, use the `list_devices` method.
-
-```rust
-use passage_flex::PassageFlex;
-
-let passage_flex = PassageFlex::new(
-    std::env::var("PASSAGE_APP_ID").unwrap(),
-    std::env::var("PASSAGE_API_KEY").unwrap(),
-);
-
-// this is the same value used when creating a transaction
-let external_id = your_user.id;
-
-// list devices
-let passkey_devices = passage_flex.user.list_devices(external_id).await.unwrap();
-for device in passkey_devices {
-    println!("{}", device.usage_count);
-}
-```
-
-## Revoke a User's Passkey Device
-
-To revoke a user's passkey device, use the `revoke_device` method.
-
-```rust
-use passage_flex::PassageFlex;
-use chrono::{Duration, NaiveDate, Utc};
-
-let passage_flex = PassageFlex::new(
-    std::env::var("PASSAGE_APP_ID").unwrap(),
-    std::env::var("PASSAGE_API_KEY").unwrap(),
-);
-
-// this is the same value used when creating a transaction
-let external_id = your_user.id;
-let last_year = Utc::now().naive_utc().date() - Duration::days(365);
-
-// list devices
-let passkey_devices = passage_flex.user.list_devices(external_id.clone()).await.unwrap();
-
-for device in passkey_devices {
-    // revoke old devices that haven't been used in the last year
-    let last_login_at_parsed =
-        NaiveDate::parse_from_str(&device.last_login_at, "%Y-%m-%dT%H:%M:%S%z").unwrap();
-
-    if last_login_at_parsed < last_year {
-        if let Err(err) = passage_flex
-            .user
-            .revoke_device(external_id.clone(), device.id)
-            .await
-        {
-            // device couldn't be revoked
-        }
-    }
-}
-```
+Find all core functions and more implementation guidance on our [Passkey Flex Rust Documentation](https://docs.passage.id/flex/rust) page.
 
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