Update SUMMARY.md

Author: Sam Alarie

SUMMARY.md

@@ -8,3 +8,4 @@
   * [👩‍💻 Basic Usage](udroid-landing/basic-usage.md)
   * [🖥️ Display](udroid-landing/setting-up-gui.md)
   * [🔉 Audio](udroid-landing/setting-up-sound.md)
+* [👩🏻‍🔧 Tips & Tricks](udroid-landing/tips-&-tricks.md)