correct readings generated by fanqie annotations

[thatbudakguy]

via @GDRom:

Secondly, just as a word of caution, medials may complicate things further; the specifics in Baxter's MC is sometimes not indicated well by fanqie, so it would have to be a looser Regex in that position (for example MC dzy- -jang becomes dzyang; the fanqie may just indicate, however, an initial MC dz instead of dzy-)

we need to know the valid patterns to correct this.

[thatbudakguy]

see list of corrections/regexes