Cleanup.

src/main/kotlin/net/thauvin/erik/bitly/Bitlinks.kt

@@ -44,7 +44,7 @@ import java.util.logging.Level
  *
  * See the [Bitly API](https://dev.bitly.com/v4/#tag/Bitlinks) for more information.
  */
-open class Bitlinks(val accessToken: String) {
+open class Bitlinks(private val accessToken: String) {
     /**
      * Returns the click counts for a specified Bitlink.
      *

src/main/kotlin/net/thauvin/erik/bitly/Bitly.kt

@@ -100,7 +100,9 @@ open class Bitly() {
     @JvmOverloads
     constructor(propertiesFile: File, key: String = Constants.ENV_ACCESS_TOKEN) : this(propertiesFile.toPath(), key)
 
-    /** Bitlinks accessor. **/
+    /**
+     * Bitlinks accessor.
+     */
     fun bitlinks(): Bitlinks = Bitlinks(accessToken)
 
     /**