docs: Update URL path for MathJax
Created by: sinkap
This is to avoid the error:
<parent_URL> was loaded over HTTPS, but requested an insecure script: 'http://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML';.
This request has been blocked; the content must be served over HTTPS.
Signed-off-by: Kapileshwar Singh kapileshwar.singh@arm.com