change: capitalisation of filenames

src/main.ts → src/Main.ts

 import { Pipeline, PipelineData } from "./core/Pipeline";
 
-import { Demo } from "./00-welcome-and-example/demo";
+import { Demo } from "./00-welcome-and-example/Demo";
 import { Example } from "./00-welcome-and-example/example";
 import { BezierDemo } from "./01-bezierCurves/demoBezier";
 import { QuaternionDemo } from "./02-quaternion/demoQuaternion";