use old website's internal link names

The links from the sidebar were working, but not some of the inner links.
Using the `{#innerLink}` inside the `.md` file will keep the old links alive and be consistent with the inner links in the docs also.

fixes #163
@ibolmo sometimes the `text` match is `null` and it will throw if I do `[1]` of null. Otherwise your idea would be more clean.