Readme.md updated

Author: richard-elvira

README.md

@@ -3,7 +3,7 @@
 ### V0.4: Beta version, 21 April 2021
 **Authors:** Carlos Campos, Richard Elvira, Juan J. Gómez Rodríguez, [José M. M. Montiel](http://webdiis.unizar.es/~josemari/), [Juan D. Tardos](http://webdiis.unizar.es/~jdtardos/).
 
-The [Changelog](https://github.com/UZ-SLAMLab/ORB_SLAM3/Changelog.md) describes the features of each version.
+The [Changelog](https://github.com/UZ-SLAMLab/ORB_SLAM3/blob/master/Changelog.md) describes the features of each version.
 
 ORB-SLAM3 is the first real-time SLAM library able to perform **Visual, Visual-Inertial and Multi-Map SLAM** with **monocular, stereo and RGB-D** cameras, using **pin-hole and fisheye** lens models. In all sensor configurations, ORB-SLAM3 is as robust as the best systems available in the literature, and significantly more accurate.