Dead link in README to documentation

[xhuw]

Thank you for submitting an SDK documentation issue. Please provide as much information you can.

System information

Describe the documentation issue

The link in the readme to the docs is dead:

look in section https://github.com/xmos/xcore_sdk#documentation the link: https://www.xmos.ai/documentation/XM-014660-PC-2/html/

Other information

[keithm-xmos]

The link will work once the HTML documentation goes live.

[keithm-xmos]

Reopening as the HTML documentation did not go live today as planned. Will close when it does.

[keithm-xmos]

Docs now live online