Update README.md

Author: ptsource

README.md

@@ -73,6 +73,7 @@ PTSource Developer Platform is a professional IDE, Source Code Editor and Compil
 | Pasmo | ASM | Z80 (ZXSpectrum, Amstrad) |
 | Zeus | ASM | Z80 (ZXSpectrum, Amstrad) |
 | SDCC | C | MCS51, GBZ80, Z80, HC08 |
+| SJasmPlus | ASM | Z80 |
 
 ## Script Compilers Included