Incorrect document links

[iitbiocat]

There are some links that are not mapped correctly on:
https://musclex.readthedocs.io/en/latest/AppSuite/ProjectionTraces/Projection-Traces-%28pt%29.html
They are:
https://musclex.readthedocs.io/en/latest/AppSuite/ProjectionTraces/Projection-Traces--How-it-works
https://musclex.readthedocs.io/en/latest/AppSuite/ProjectionTraces/Projection-Traces--How-to-use

The links are missing ".html". It is possible to get to these sections from the side menu
https://musclex.readthedocs.io/en/latest/AppSuite/ProjectionTraces/Projection-Traces--How-it-works.html
https://musclex.readthedocs.io/en/latest/AppSuite/ProjectionTraces/Projection-Traces--How-to-use.html

[XintianLee]

Fixed.