Merge branch 'fix-playground-links' into 'master'

[SDK][DOC]Fix playground's internal links

See merge request codingame/game-engine!160

Author: Jean Poree

playground/graphics/graphics-4-spritesheets.md

@@ -2,7 +2,7 @@
 
 The Graphic Entity Module can cut and handle spritesheets. There are two ways of doing that.
 
-## Using the SpriteSheetSplitter
+## Using the SpriteSheetSplitter <a name="SpriteSheetSplitter"></a>
 
 This is the easiest way to create a set of sprites from a spritesheet. This solution is good for prototyping but it is performance costly.
 

playground/graphics/graphics-text.md

@@ -2,7 +2,7 @@
 
 The Graphic Entity Module includes two different classes to display text, here's how they work.
 
-## Text
+## Text <a name="Text"></a>
 
 The basic class to display text, it will be displayed as a label in the viewer.
 
@@ -18,7 +18,7 @@ The only font family values that will work are:
 "Lato" and those that are available by default on all browsers.
 If the browser does not recognise the font family, it will be displayed in a fallback font chosen by the browser.
 
-## BitmapText
+## BitmapText <a name="BitmapText"></a>
 
 This class is used to display text using a bitmap font in your assets folder.
 

playground/misc/misc-3-release-notes.md

@@ -16,7 +16,7 @@ The CodinGame SDK is regularly updated and improved. This document lets you know
 - 💥 _Breaking change_ Renamed SpriteSheetLoader to SpriteSheetSplitter.
 - Subfolders of the assets folder work on Windows now.
 - Frame zero now has a duration of zero.
-- The [SpriteSheetSplitter](playground/graphics/graphics-spritesheet.md#Using the SpriteSheetSplitter) doesn't reload the sprite sheet if it's already in the TextureCache.
+- The [SpriteSheetSplitter](playground/graphics/graphics-spritesheet.md#SpriteSheetSplitter) doesn't reload the sprite sheet if it's already in the TextureCache.
 - The local player now uses the parameters stored in the LocalStorage.
 - Removed the max turn warning, since it's replaced by a limit of alloted time.
 - Better process cleanup.