Updated README

README.md

@@ -2,20 +2,19 @@
 
 A high-precision partially-symbolic calculator with support for units, derivatives, and more.
 
-# Warning
 This is nowhere near complete. Stay tuned.
 
 
 # TODO
 
 ## Before For 1.0 release
- - + as a unary operator
+ - `+` as a unary operator
  - Compare operators => *, / should have the same priority!
- - Function application
  - Commands
  - Documentation (usage)
  - Documentation (comments)
  - Branding
+ - Units
 
 
 ## General
@@ -31,11 +30,12 @@ This is nowhere near complete. Stay tuned.
  - Copy expression
  - Non-recursive treeify
  - Faster factorial function. Maybe use gamma instead?
+ - Remove extra calls to `.clone()`
+ - Arbitrary precision float (rug doesn't offer arbitrary exponents)
 
 ## Features
  - Variable definitions
  - Function definitions
- - Rational datatype
  - Units
  - Dice
  - Mean, Median, Min, Max: arrays and multi-arg functions