Ask screenshots and a playable link for example submissions (#816)

Author: D8H

.github/ISSUE_TEMPLATE/new-example.md

@@ -4,8 +4,8 @@ about: Submit a new example to be added to the repository
 title: New example
 labels: '✨ New example'
 assignees: ''
-
 ---
+
 <!--
 **⚠️ Please edit and complete this before submitting your game:**
 -->
@@ -30,9 +30,15 @@ A clear and concise description of what the example is, how useful it is.
 ## Game folder
 
 <!--
-Finally, attach a zip file containing your game and all its resources (images, sounds, etc...)
+Finally, attach a zip file containing your game project folder and all its resources (images, sounds, etc...)
 
 You also may have to create an account on GitHub before posting.
 If your game is high quality and useful, it will be added to the list of GDevelop community examples.
 When you're ready, remove this last paragraph and click on "Submit new issue". Thanks 🙌
 -->
+
+## Game preview
+
+<!--
+You can add a few screenshots of your game and a link to play it to show how cool your example is.
+-->

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

@@ -24,7 +24,7 @@ Object {
     "simple",
     "Starter",
     "Anchor",
-    "Animatable capability",
+    "Objects with animations",
     "Event functions",
     "Sounds and music",
     "Layers and cameras",
@@ -36,19 +36,19 @@ Object {
     "Timers and time",
     "Variables",
     "Debugger Tools",
-    "Effect capability",
-    "Flippable capability",
+    "Objects with effects",
+    "Flippable objects",
     "Linked objects",
-    "Opacity capability",
+    "Objects with opacity",
     "Panel Sprite (9-patch) Object",
     "Particle system",
     "Platform behavior",
     "Shape painter",
-    "Resizable capability",
-    "Scalable capability",
+    "Resizable objects",
+    "Scalable objects",
     "Sprite",
     "System information",
-    "Text capability",
+    "Objects containing a text",
     "Text object",
     "Tiled Sprite Object",
     "Tweening",
@@ -94,7 +94,7 @@ Get as far as you can before you crash in to a wall, submit your score, and try
     "simple",
     "Starter",
     "Anchor",
-    "Animatable capability",
+    "Objects with animations",
     "Event functions",
     "Sounds and music",
     "Layers and cameras",
@@ -110,17 +110,17 @@ Get as far as you can before you crash in to a wall, submit your score, and try
     "Timers and time",
     "Variables",
     "Destroy Outside Screen Behavior",
-    "Effect capability",
-    "Flippable capability",
+    "Objects with effects",
+    "Flippable objects",
     "Leaderboards",
-    "Opacity capability",
+    "Objects with opacity",
     "Panel Sprite (9-patch) Object",
     "Platform behavior",
     "Player Authentication",
-    "Resizable capability",
-    "Scalable capability",
+    "Resizable objects",
+    "Scalable objects",
     "Sprite",
-    "Text capability",
+    "Objects containing a text",
     "Text Input",
     "Text object",
     "Tiled Sprite Object",
@@ -156,18 +156,18 @@ Object {
   "tags": Array [
     "starting-platformer",
     "Starting point",
-    "Animatable capability",
+    "Objects with animations",
     "Sounds and music",
     "Mathematical tools",
     "Objects",
     "Variables",
     "Debugger Tools",
-    "Effect capability",
-    "Flippable capability",
-    "Opacity capability",
+    "Objects with effects",
+    "Flippable objects",
+    "Objects with opacity",
     "Platform behavior",
-    "Resizable capability",
-    "Scalable capability",
+    "Resizable objects",
+    "Scalable objects",
     "Sprite",
     "Tiled Sprite Object",
     "Tweening",
@@ -200,20 +200,20 @@ Object {
   "slug": "starting-platformer-pixel",
   "tags": Array [
     "starting-platformer-pixel",
-    "Animatable capability",
+    "Objects with animations",
     "Sounds and music",
     "Layers and cameras",
     "Mathematical tools",
     "Objects",
     "Scene",
     "Variables",
     "Debugger Tools",
-    "Effect capability",
-    "Flippable capability",
-    "Opacity capability",
+    "Objects with effects",
+    "Flippable objects",
+    "Objects with opacity",
     "Platform behavior",
-    "Resizable capability",
-    "Scalable capability",
+    "Resizable objects",
+    "Scalable objects",
     "Sprite",
     "Tiled Sprite Object",
     "Tweening",