Do some more stuff

README.md

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+# Ground, but written in C this time
+
+This repo houses the new Ground interpreter, which will replace the old C++ interpreter.
+
+Features of this interpreter:
+
+* Written in C instead of C++
+* Somewhat organised and readable codebase
+* Not super buggy (yet)
+* Uses standard, portable C*
+
+Now that Ground's features have mostly been finalised, this interpreter can be built with care to many features not initially planned, like functions and data structures
+
+*so far, only tested on Linux, but hopefully should work on other platforms as well 
+
+Progress marker:
+
+- [x] Lexer
+- [x] Parser
+    - [x] Labels
+    - [x] Instructions
+    - [x] Values
+    - [x] References
+- [ ] Interpreter
+    - [ ] Labels
+    - [ ] Console I/O
+    - [ ] Control flow
+    - [ ] Data
+        - [ ] Variable creation
+        - [ ] Variable access
+        - [ ] Lists
+            - [ ] Creation
+            - [ ] Access
+        - [ ] String operations
+    - [ ] Maths
+    - [ ] Comparisions
+    - [ ] Type conversions
+    - [ ] Functions
+    - [ ] Custom data structures
+    - [ ] Working with external libraries