User feedback: What derivatives are available is not obvious.

**Is your feature request related to a problem? Please describe.**
A user mentioned that they were unaware of what derivatives were possible on the carb builders.

**Describe the solution you'd like**
Add this line to the examples on build via text:
Derivatives:
DGalp[6D,4Ac,2S,3Me]b1-OH
Possibilities: Ac (Acetyl), Me (Methyl), D (Deoxy), S (Sulfate).

Have the derivative information be more visible on the carb-builder page. Needs a design meeting.