fix links

Author: jhavl

README.md

@@ -1,6 +1,6 @@
 # Robotics Toolbox for Python
 
-[![A Python Robotics Package](https://raw.githubusercontent.com/petercorke/robotics-toolbox-python/future/.github/svg/py_collection.min.svg)](https://github.com/petercorke/robotics-toolbox-python)
+[![A Python Robotics Package](https://raw.githubusercontent.com/petercorke/robotics-toolbox-python/master/.github/svg/py_collection.min.svg)](https://github.com/petercorke/robotics-toolbox-python)
 [![QUT Centre for Robotics Open Source](https://github.com/qcr/qcr.github.io/raw/master/misc/badge.svg)](https://qcr.github.io)
 
 [![PyPI version](https://badge.fury.io/py/roboticstoolbox-python.svg)](https://badge.fury.io/py/roboticstoolbox-python)
@@ -347,22 +347,22 @@ If you are using the Toolbox in your open source code, feel free to add our badg
 
 For the powered by robotics toolbox badge
 
-[![A Python Robotics Package](https://raw.githubusercontent.com/petercorke/robotics-toolbox-python/future/.github/svg/rtb_powered.min.svg)](https://github.com/petercorke/robotics-toolbox-python)
+[![A Python Robotics Package](https://raw.githubusercontent.com/petercorke/robotics-toolbox-python/master/.github/svg/rtb_powered.min.svg)](https://github.com/petercorke/robotics-toolbox-python)
 
 copy the following
 
 ```
-[![A Python Robotics Package](https://raw.githubusercontent.com/petercorke/robotics-toolbox-python/future/.github/svg/rtb_powered.min.svg)](https://github.com/petercorke/robotics-toolbox-python)
+[![A Python Robotics Package](https://raw.githubusercontent.com/petercorke/robotics-toolbox-python/master/.github/svg/rtb_powered.min.svg)](https://github.com/petercorke/robotics-toolbox-python)
 ```
 
 For the powered by python robotics badge
 
-[![A Python Robotics Package](https://raw.githubusercontent.com/petercorke/robotics-toolbox-python/future/.github/svg/pr_powered.min.svg)](https://github.com/petercorke/robotics-toolbox-python)
+[![A Python Robotics Package](https://raw.githubusercontent.com/petercorke/robotics-toolbox-python/master/.github/svg/pr_powered.min.svg)](https://github.com/petercorke/robotics-toolbox-python)
 
 copy the following
 
 ```
-[![A Python Robotics Package](https://raw.githubusercontent.com/petercorke/robotics-toolbox-python/future/.github/svg/pr_powered.min.svg)](https://github.com/petercorke/robotics-toolbox-python)
+[![A Python Robotics Package](https://raw.githubusercontent.com/petercorke/robotics-toolbox-python/master/.github/svg/pr_powered.min.svg)](https://github.com/petercorke/robotics-toolbox-python)
 ```
 
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