Format example scripts better.

scripts/mat_mul.rhai

@@ -1,12 +1,14 @@
+// This script simulates multi-dimensional matrix calculations.
+
 const SIZE = 50;
 
 fn new_mat(x, y) {
     let row = [];
     row.pad(y, 0.0);
-    
+
     let matrix = [];
     matrix.pad(x, row);
-    
+
     matrix
 }
 
@@ -20,13 +22,13 @@ fn mat_gen() {
             m[i][j] = tmp * (i - j) * (i + j);
         }
     }
-    
+
     m
 }
 
 fn mat_mul(a, b) {
     let b2 = new_mat(a[0].len, b[0].len);
-    
+
     for i in 0..a[0].len {
         for j in 0..b[0].len {
             b2[j][i] = b[i][j];
@@ -38,7 +40,7 @@ fn mat_mul(a, b) {
     for i in 0..c.len {
         for j in 0..c[i].len {
             c[i][j] = 0.0;
-            
+
             for z in 0..a[i].len {
                 c[i][j] += a[i][z] * b2[j][z];
             }