started work on assignment operators

README.md

@@ -1,3 +1,71 @@
 # Plasma
 
-The Plasma programming language.
+The Plasma programming language.
+
+# Syntax Guide
+## Functions
+All your logic must be contained in the "main" function, which looks like this:
+```cpp
+main = Func(): Int {
+
+}
+```
+This is how you define functions. In this example, "main" is the name of the function, and `Int` is the return type. My function takes no arguments.
+If I wanted to make a function that takes arguments, it might look like this:
+```cpp
+add = Func(number1: Int, number2: Int): Int {
+	return number1 + number2
+}
+```
+This is a function that adds two numbers together, here's the same function in Python:
+```py
+def add(number1: int, number2: int) -> int:
+	return number1 + number2
+```
+
+### Calling Functions
+To call a function, you type a dollar sign (the $ symbol), then the name of the function, and then you pass any of your arguments inbetween paranthesis, like this:
+```cpp
+add = Func(number1: Int, number2: Int): Int {
+	return number1 + number2
+}
+...
+later in my code...
+...
+$add(9, 10);
+```
+
+Here's a "Hello, World!" program in Plasma:
+```cpp
+main = Func(): Int {
+	$print("Hello, World!\n");
+}
+```
+`print` is a builtin function, it's defined in every piece of code you write. It has the same formatting as the `printf` function in C, so if I wanted to print an integer I could do it like so:
+```cpp
+$print("%i\n", 123);
+```
+
+
+## Variables
+To create a variable, it's as simple as:
+```cpp
+name: Type = value;
+```
+
+There are several types in Plasma, which are: `Int`, `Float`, `Bool`, `String`
+
+Here's another example:
+```cpp
+name: String = "bob";
+age: Int = 23;
+```
+
+To change the value of an already defined variable, you just have to provide the name, and then write an equals sign, like this:
+```cpp
+-- defining the variable
+age: Int = 23;
+
+-- changing it later
+age = age + 1;
+```