Test autocrossref on technical section

Tried testing autocrossref on a technical section, and discovered one
bug (now fixed).  With this test done, I think it might be time to merge
this into the full tree.  Changes:

* Changed word boundry (\b) in regex to more complicated form that just
  doesn't match inside words. This makes \`term\` work.

* Added autocrossref to P2PH script eval section, a technical section.
  With the above fix, it works well.

* Added a few more terms to the YAML list for the P2PH script
  eval section.