Add Instabug (vsouza#1733)

README.md

@@ -2429,6 +2429,7 @@ Most of these are paid services, some have free tiers.
 * [Rollout.io](https://rollout.io/) - SDK to patch, fix bugs, modify and manipulate native apps (Obj-c & Swift) in real-time.
 * [AppLaunchpad](https://theapplaunchpad.com/) - Free App Store screenshot builder.
 * [LaunchKit](https://github.com/LaunchKit/LaunchKit) - A set of web-based tools for mobile app developers, now open source!
+* [Instabug](https://instabug.com) - In-app feedback, Bug and Crash reporting, Fix Bugs Faster through user-steps, video recordings, screen annotation, network requests logging.
 
 # App Store
 * [Average App Store Review Times](http://appreviewtimes.com) This site tracks the average App Store review times for both the iOS and the Mac App Store using data crowdsourced from iOS and Mac developers.