added changelogs - v6.0

changelogs/6.0.0.md

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+## Version 6.0.0
+
+#### The main goal of version 6.0 update was to remove ScoreHud dependency pocketmine tasks. So that was achieved by making ScoreHud **event driven**! <br />
+
+**Q: But what exactly does event driven mean? And what are its benefits?** <br />
+A: Well, its simple, instead of using **tasks** to update values on scoreboard every 20 or so ticks even when there was **no
+update**, ScoreHud now **listens for events** that are fired by the plugin which implements ScoreHud. In doing so, the scoreboard
+is **only updated when there is an actual update** and not the other way round. Although not tested but this should **improve
+ScoreHud's performance**.<br />
+
+**Addon support was removed** with version 6.0 update. Reason being that it was no longer feasible and users had reported addons
+not working on different systems either due to hosting problem or some other reasons. Removing addons and listening to events
+instead should now **work on almost all systems**.<br />
+
+ScoreHud using events is in the **benefit of plugin developers and the end-user** as well. Users no longer will need to download
+and place addons in separate folder. And plugin developers will no longer need to make a separate addon for ScoreHud. They
+can just integrate ScoreHud directly into their plugin and fire events to update their tags on ScoreHud.