chore(docs): temporarily remove custom readme code (#175)

README.md

@@ -102,43 +102,6 @@ See [Pagination](#pagination) below for more information on transparently workin
 
 ---
 
-## Enums
-
-The Lithic SDK generates wrapper classes for all enum properties in the API. You can read and write these
-values directly using the static instances of the class:
-
-```kotlin
-// Read an enum property
-if (card.state == Card.State.CLOSED) {
-  // ...
-}
-
-// Write an enum property
-card.builder().state(Card.State.CLOSED).build()
-```
-
-Over time, the Lithic API may add new values to the property that are not yet represented by the enum type in
-this SDK. If an unrecognized value is found, the enum is set to a special sentinel value `_UNKNOWN` and you can use `asString` to read the string that was received:
-
-```kotlin
-when (card.state.value()) {
-    Card.State.Value.CLOSED -> {
-        // ... handle recognized enum value
-    }
-    ...
-    case Card.State.Value._UNKNOWN -> {
-        String cardState = card.state.asString()
-        // ... handle unrecognized enum value as string
-    }
-}
-```
-
-To write an unrecognized enum value, pass a string to the wrapper class's `of` constructor method:
-
-```kotlin
-Card.builder().state(State.of("NEW_STATE")).build()
-```
-
 ## Requests
 
 ### Parameters and bodies
@@ -168,15 +131,6 @@ When receiving a response, the Lithic Kotlin SDK will deserialize it into instan
 val card = client.cards().create().validate()
 ```
 
-### Nullable Properties
-
-Model properties that are optional or allow a null value are represented as `Optional`. The empty case can represent either that the field was provided as null, or that it was simply not present.
-
-```kotlin
-// Card.cvv returns String?
-card.cvv != null // false
-```
-
 ### Response properties as JSON
 
 In rare cases, you may want to access the underlying JSON value for a response property rather than using the typed version provided by
@@ -257,20 +211,6 @@ while (page != null) {
 
 ---
 
----
-
-## Webhook Verification
-
-We provide helper methods for verifying that a webhook request came from Lithic, and not a malicious third party.
-
-You can use `lithic.webhooks().verifySignature(body, headers, secret?)` or `lithic.webhooks().unwrap(body, headers, secret?)`,
-both of which will raise an error if the signature is invalid.
-
-Note that the "body" parameter must be the raw JSON string sent from the server (do not parse it first).
-The `.unwrap()` method can parse this JSON for you.
-
----
-
 ## Error handling
 
 This library throws exceptions in a single hierarchy for easy handling: