Added httpError function

Renamed apiCall to getRawJoke
Added HTTP Error Exception class
Added models and exceptions

README.md

@@ -26,3 +26,71 @@ data class Joke(
     val language: Language
 )
 ```
+
+If an error occurs, a `JokeException` is thrown:
+
+```kotlin
+class JokeException(
+    val error: Boolean,
+    val internalError: Boolean,
+    val code: Int,
+    message: String,
+    val causedBy: List<String>,
+    val additionalInfo: String,
+    val timestamp: Long,
+    cause: Throwable? = null
+) : Exception(message, cause)
+```
+
+If an HTTP error occurs an `HttpErrorException` is thrown, with its message and cause matching the [JokeAPI status codes](https://sv443.net/jokeapi/v2/#status-codes):
+
+```kotlin
+class HttpErrorException(
+    val statusCode: Int,
+    message: String,
+    cause: Throwable? = null
+) : IOException(message, cause)
+```
+
+## Gradle, Maven, etc.
+To use with [Gradle](https://gradle.org/), include the following dependency in your build file:
+
+```gradle
+dependencies {
+    implementation("net.thauvin.erik:jokeapi:0.9-SNAPSHOT")
+}
+```
+
+Instructions for using with Maven, Ivy, etc. can be found on Maven Central.
+
+## Raw Joke
+
+You can also retrieve a raw joke in all [supported formats](https://jokeapi.dev/#format-param).
+
+For example for YAML:
+```kotlin
+var joke = getRawJoke(format = Format.YAML, idRange = IdRange(22))
+println(joke)
+```
+```yaml
+error: false
+category: "Programming"
+type: "single"
+joke: "If Bill Gates had a dime for every time Windows crashed ... Oh wait, he does."
+flags:
+  nsfw: false
+  religious: false
+  political: false
+  racist: false
+  sexist: false
+  explicit: false
+id: 22
+safe: true
+lang: "en"
+
+```
+
+
+
+
+