Add API documentation for the error properties and types

turbo/src/main/kotlin/dev/hotwire/turbo/visit/TurboVisitError.kt

@@ -2,17 +2,17 @@ package dev.hotwire.turbo.visit
 
 data class TurboVisitError(
     /**
-     *
+     * The [TurboVisitErrorType] type of error received.
      */
     val type: TurboVisitErrorType,
 
     /**
-     *
+     * The error code associated with the [TurboVisitErrorType] type.
      */
     val code: Int,
 
     /**
-     * 
+     * The (optional) description of the error.
      */
     val description: String? = null
 )

turbo/src/main/kotlin/dev/hotwire/turbo/visit/TurboVisitErrorType.kt

@@ -2,22 +2,28 @@ package dev.hotwire.turbo.visit
 
 enum class TurboVisitErrorType {
     /**
-     *
+     * Represents an error when Turbo and the javascript adapter fails to
+     * load on the page.
      */
     LOAD_ERROR,
 
     /**
-     *
+     * Represents an error received from your server with an HTTP status code.
+     * The code corresponds to the status code received from your server.
      */
     HTTP_ERROR,
 
     /**
-     *
+     * Represents an [androidx.webkit.WebResourceErrorCompat] error received
+     * from the WebView when attempting to load the page. The code corresponds
+     * to one of the ERROR_* constants in [androidx.webkit.WebViewClientCompat].
      */
     WEB_RESOURCE_ERROR,
 
     /**
-     *
+     * Represents an [android.net.http.SslError] error received from the WebView
+     * when attempting to load the page. The code corresponds to one of the
+     * SSL_* constants in [android.net.http.SslError].
      */
     WEB_SSL_ERROR
 }