Fix linting errors.

Author: blwatkins

src/sketch.ts

@@ -22,12 +22,12 @@ import '../assets/style/sketch.css';
 function sketch(p5: P5Lib): void {
     p5.setup = (): void => {
         p5.createCanvas(720, 720);
-    }
+    };
 
     p5.draw = (): void => {
         p5.background(0);
         p5.ellipse(p5.mouseX, p5.mouseY, 100, 100);
-    }
+    };
 }
 
 new P5Lib(sketch);