Update examples

reid/examples/reid/array.reid

@@ -5,8 +5,6 @@ fn array() -> [[[u16; 4]; 1]; 1] {
 }
 
 fn main() -> u16 {
-    let heehoo = 10;
-
     let mut list = array();
 
     list[0][0][3] = 5;

reid/examples/reid/hard.reid

@@ -1,8 +0,0 @@
-// New types, type-casting
-
-import std::print;
-
-let text: string = "hello there!";
-let value: i16 = 123;
-
-print(text + (value as string));

reid/examples/reid/mutable.reid

@@ -6,11 +6,11 @@ fn indirection() -> bool {
 
 fn main() -> u16 {
     let mut test = 5;
-    let heehoo = 10;
+    let addition = 10;
 
     if indirection() {
         test = 11;
     }
 
-    return test + heehoo;
+    return test + addition;
 }

reid/examples/reid/strings.reid

@@ -0,0 +1,7 @@
+
+
+fn main() -> u16 {
+    let hello = "beep boop";
+
+    return 5;
+}