readme update

README.md

@@ -6,7 +6,7 @@ A very basic interpreted programming language.
 
 The goal of this project is to create a simple implementation of a BASIC-like language just to learn a few things along the way and practice my C programming skills.
 
-No need to do complex thing, just to create a simple interpreted language that can be used to do some arithmetics
+No need to do complex things, just to create a simple interpreted language that can be used to do some arithmetics
 and create for example a number guessing game.
 
 I didn't really study how others languages works beforehand, I'm just guessing how I'm implementing things so that I can make mistakes to learn from.
@@ -27,7 +27,10 @@ ToDo List:
 - [X] allow to set variables
 - [X] read line comments
 - [ ] add modulus operator '%'
-- [ ] implement input_number()
+- [ ] add support for multiple characters operators
+- [ ] add inclusive operators like '!=', '>=', '<='
+- [ ] add input_number() std function
+- [ ] add type() std function
 - [X] base of the CLI
 - [ ] evaluate expression from stdin
 - [X] read a file
@@ -135,10 +138,16 @@ end
 ```
 abs(nb)
 sqrt,sin,cos,exp,ln,log etc.
-print_number(data)
+print_number(nb)
 input_number()
 random_int(min, max)
 random_float(min, max)
+type(var) -> return the type of a var as int
+is_int(var)
+is_float(var)
+print_string(str)
+print_newline()
+print_ascii(nb)
 ```
 
 # Evaluator (draft)