rearranged things

examples/hello.rs

@@ -0,0 +1,6 @@
+// i want to hug ferris
+
+fn main() {
+    println!("Hello World!");
+    println!("I'm a Rustacean!");
+}

examples/variables.txt

@@ -0,0 +1,5 @@
+- Variables are immutable by default
+- Normal variables can have their value reassigned, mutable variables must keep the same type
+  and immutable variables can have their values reassigned using let again, also allowing you
+  to change the type (shadowing)
+- Constant variables cannot have new variables reassigned to the name they use

examples/variables_mutable.rs

@@ -0,0 +1,12 @@
+/*
+ * x is defined as an mutable variable, the value is reassigned again later without redfining it.
+ * mutable variables are assigned one type, and the variable cannot be any other type other than the
+ * one it was originally assigned.
+*/
+
+fn main() {
+    let x = 5;
+    println!("The value of x is: {}", x);
+    let x = 6;
+    println!("The value of x is: {}", x);
+}

examples/variables_shadow.rs

@@ -0,0 +1,11 @@
+/*
+ * x is defined as an immutable variable, then defined again later (shadowed?)
+ * redefining a variable like this lets you change the type.
+*/
+
+fn main() {
+    let x = 5;
+    println!("The value of x is: {}", x);
+    let x = 6;
+    println!("The value of x is: {}", x);
+}