update readme

README.md

@@ -3,17 +3,18 @@
 my child (programming language)
 
 everything is subject to change rn, and this probably isn't up to date
+also nothing is super well tested right now so I'm sure there are bugs I don't think exist
 
 `cargo run -- data/test.lang`
 
 currently working!!:
 - functions (arguments, returning)
 - assembly blocks (input, output for expression)
-- kind of structs (construction, field access, but not modifying lmao)
+- structs (construction, field access, modifying, nesting)
 
 todo:
+- generics (groundwork is there I think)
 - actually handle jumps & LIs that are too large
 - iterators?
 - borrow checking
-- multiple var instances for struct fields / fix all that stuff
 - basic optimization: use registers, remove temp var moves