TOC Hyperlinks break when titles have `code tags` in them

[tjwieg]

If any headers have code tags in them, the automatically generated hyperlinks don't work. To fix this, simply remove any backticks (`) from the links.

An example with broken links due to backticks in links: https://github.com/rbotts/Occupancy/blob/446c2205c8c78eddc87ebd20a86e1bad850dfdea/UnmarkedGuide.md (note that the two TOC items without any code tags have working links, but all the TOC items with code tags, such as "Creating colext models" do not have working links.)

An example with those links fixed by removing the backticks: https://github.com/rbotts/Occupancy/blob/f134cb8cb9626463e71df73c01681112eb004e9b/UnmarkedGuide.md (note that now even the TOC items with code tags do have working links.

The diff between the two: https://github.com/rbotts/Occupancy/commit/f134cb8cb9626463e71df73c01681112eb004e9b#diff-776f5c8d16bf7b01e8f44ec08d2ac678