FIX: finpres: wording.

FIX: impl report: broken ref

FIX: class_diagram: font. stick to sansserif because it works on all …

…machines.

UPD: Use other font and escape <,>

FIX: capitalization in title.

FIX: Use \geq instead of \geqslant for consistency

FIX: capitalization of replica set #2

FIX: capitalize risk group

FIX: Use \geq instead of \geqslant for consistency