Refactor portfolio and fix grammar

src/data/platform-game.ts

@@ -0,0 +1,21 @@
+import platformJpeg from '../static/media/platform.png?format=jpg';
+import platformWebP from '../static/media/platform.png?format=webp';
+
+import { Image } from '../page/basics/image/image';
+
+export const platformGameTimelineElement = {
+  date: `2017 autumn`,
+  title: `Platform game`,
+  figure: new Image(platformWebP, platformJpeg, `a picture of the app`),
+  description: `A 3D game written in C with the help of SDL 1.2 (I haven't heard of GPU programming at the time).`,
+  more: [
+    `
+      The maps are randomly generated and fully destroyable. 
+      The player is getting chased by flying enemies. Overall, I find it a really enjoyable game.
+    `,
+    `
+      I did this as a homework for my Basics of Programming course.
+    `,
+  ],
+  links: [],
+};