Merge pull request #1893 from hkasera/404-link-fix

Issue #1797 fixed

free-courses-en.md

@@ -38,7 +38,7 @@
 
 ### Android
 
-* [Creative, Serious and Playful Science of Android Apps](https://www.coursera.org/course/androidpart1apps101)
+* [Creative, Serious and Playful Science of Android Apps](https://www.coursera.org/course/androidapps101/)
 * [Programming Cloud Services for Android Handheld Systems](https://www.coursera.org/course/mobilecloudprogram)
 * [Programming Mobile Applications for Android Handheld Systems pt. 1](https://www.coursera.org/course/android)
 * [Programming Mobile Applications for Android Handheld Systems pt. 2](https://www.coursera.org/course/androidpart2)