extend MTEXT docs
@@ -190,7 +190,8 @@ Code Description
\\W Text width - e.g. relative \\W0.8x; absolut \\W0.8;
\\T Tracking, character spacing - e.g. relative \\T0.5x; absolut \\T2;
\\F Font selection e.g. \\Fgdt;o - GDT-tolerance
-\\S Stacking, fractions e.g. \\SA^ B or \\SX/ Y or \\S1# 4
+\\S Stacking, fractions e.g. \\SA^ B; space after "^" is required to avoid
+ caret decoding, \\SX/Y; \\S1#4;
\\A Alignment
- \\A0; = bottom
