Update README.md

computer_graphics/README.md

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 ### Rendering
 
-* [:scroll:](digital_video_stabilization_and_rolling_shutter_correction_using_gyroscopes.pdf) [Digital Video Stabilization and Rolling Shutter Correction using Gyroscopes](http://graphics.stanford.edu/papers/stabilization/karpenko_gyro.pdf)
+* :scroll: [Digital Video Stabilization and Rolling Shutter Correction using Gyroscopes](http://graphics.stanford.edu/papers/stabilization/karpenko_gyro.pdf)
 This is a really great paper that is both complex and straightforward. This paper "present a robust, real-time video stabilization and rolling shutter correction technique based on gyroscopes". I think this is a great paper because it makes a clever use of a commodity technology (smartphones' gyroscopes) to make a state-of-the-art improvement to a central components of phones: video cameras by removing the shakes and rolling shutter artifacts of a video in real-time.
 
 * [An Improved Illumination Model for Shaded Display](https://www.cs.drexel.edu/~david/Classes/CS586/Papers/p343-whitted.pdf)