Update Sphinx roadmap: compiler 50/72 tests (69%)

docs/roadmap.md

@@ -34,7 +34,9 @@ fix, float division semantics, PRINT USING null-byte token fix,
 string comparison (strcmp), ON ERROR GOTO (setjmp), graphics/sound
 delegation to runtime via token embedding, CVI/MKI$/CVS/MKS$/CVD/MKD$,
 MID$ assignment delegation, ON ERROR GOTO with setjmp/gw_run_jmp,
-RESUME/RESUME NEXT, ERR/ERL. **49 produce correct output (68%).**
+RESUME/RESUME NEXT, ERR/ERL, file I/O delegation (OPEN/CLOSE/PRINT#/
+INPUT#/WRITE#/LINE INPUT via emit_delegate_stmt). **50 produce correct
+output (69%).**
 
 **Phase 3**: random-access files, PRINT USING, graphics, sound, event
 trapping, remaining statements.