Missing link to source code Articulation Body API in Joint Control Script section

[sergiosolorzano]

Hi link is broken for the source code Joint Control Script sourc code behind.

To Reproduce
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1. Go to '...'
2. Click on '....'
3. Scroll down to '....'
4. See error

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Expected behavior
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Environment (please complete the following information, where applicable):

• Unity Version: [e.g. Unity 2020.2.0f1]
• Unity machine OS + version: [e.g. Windows 10]
• ROS machine OS + version: [e.g. Ubuntu 18.04, ROS Noetic]
• ROS–Unity communication: [e.g. Docker]
• Branch or version: [e.g. v0.2.0]

Additional context
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