Update notes.md

notes.md

@@ -8,7 +8,7 @@ we'd like to do write-only/single-pass type thing
 
 also generate a parse tree
 
-we should dig up the "acid tests" that let us break our previous LR(1) parser backend and make sure our approach manages to parse them
+we should dig up the "acid test" language that let us break our previous LR(1) parser backend and make sure our approach manages to parse them
 
 to generate a parse tree, we need to log what path we take through the regular languages and through the stack