Add more descriptive names to objects of starter games (#905)

Author: HelperWesley

__tests__/post-build/__snapshots__/exampleShortHeaders.json.spec.js.snap

@@ -153,9 +153,7 @@ Object {
   "previewImageUrls": Array [
     "https://resources.gdevelop-app.com/examples/starting-platformer/preview.png",
   ],
-  "shortDescription": "A 2D platformer game in which the player can jump on platforms and collect coins.
-It has platforms, a player and coins to collect.
-Support mobile controls and keyboard.",
+  "shortDescription": "A 2D side-view platformer game with a smooth camera that follows the player’s movement. The player uses the platformer behavior, and can move left or right, jump, and fall within the game scene. Platforms allow the player to navigate vertically, and coins can be collected throughout the level. The game supports both keyboard/mouse controls and mobile touch controls.",
   "slug": "starting-platformer",
   "tags": Array [
     "starting-platformer",
@@ -186,7 +184,7 @@ exports[`exampleShortHeaders.json post build checks defaultTags 4`] = `
 Object {
   "authorIds": Array [],
   "codeSizeLevel": "tiny",
-  "description": "",
+  "description": "Assets and game are optimized for pixel art.",
   "gdevelopVersion": "",
   "id": "986ba30910cf3873205796d8331f76dee507673d89e55b04415759cd39b2ebca",
   "license": "MIT",
@@ -200,10 +198,7 @@ Object {
   "previewImageUrls": Array [
     "https://resources.gdevelop-app.com/examples/starting-platformer-pixel/preview.png",
   ],
-  "shortDescription": "A 2D platformer game in which the player can jump on platforms and collect coins.
-It has platforms, a player and coins to collect like a basic 2D Mario-like game.
-Support mobile controls and keyboard.
-Assets and game are optimized for pixel art.",
+  "shortDescription": "A 2D side-view platformer game with a smooth camera that follows the player’s movement. The player uses the platformer behavior, and can move left or right, jump, and fall within the game scene. Platforms allow the player to navigate vertically, and coins can be collected throughout the level. The game supports both keyboard/mouse controls and mobile touch controls.",
   "slug": "starting-platformer-pixel",
   "tags": Array [
     "starting-platformer-pixel",

examples/starting-beatemup/README.md

@@ -1,4 +1,3 @@
 # Beat'em up
 
-A 2D, side-view, beat'em up style game where the player controls a character that can move in the level and attack other characters who are trying to hurt him.
-Support for keyboard and mobile controls.
+A 2D side-scrolling beat’em up brawler where the player uses top-down style movement within a side-view camera angle. All movement, attacks, and hurt states use animations and animation timers. The player uses a separate attack collision object to detect hits on enemies, while enemies move toward the player and attack using their own collision mask objects to detect hits on the player. Boundaries keep the player within the play area of the screen. The game supports both keyboard and mobile touch controls.