Update download pdf

Author: theodorosploumis

_data/projects/waterwheel-swift.yml

@@ -3,7 +3,7 @@ year_created: 2010
 source: https://github.com/kylebrowning/waterwheel.swift
 homepage: https://github.com/kylebrowning/waterwheel.swift
 docs:
-logo: https://raw.githubusercontent.com/kylebrowning/waterwheel-js/assets/waterwheel.png
+logo: https://raw.githubusercontent.com/acquia/waterwheel-swift/assets/waterwheel.png
 
 description: "Waterwheel makes using Drupal as a backend with iOS, macOS, tvOS,
 or watchOS enjoyable by combining the most used features of Drupal's API's in