Thanks for trying and finding this bugs.
There's no problem with correcting comments and sources equations.
About transistors and diode current equations:
These equations may be too cumbersome for some device models (say, MOSFET LEVEL=2,3).
For some relatively simple current equations such as SPICE-Diode, Gummel-Poon BJT, JFET transistors etc. it's possible to write down corresponding expressions explicitly, which we work on.
You may also find needed SPICE-models current equations in the literature on the topic, such as well-known The SPICE Book by A. Vladimirescu or others, and manually add them into your .m file.
We will fix the mentioned problems in the next release. See new version of SimOne soon.