chore(docs): Remove -icon string from icon png's (#2040)

* rename icons (remove `-icon`)

* Remove (`-icon`) from chart.yaml

* Add 2 icons

* slight format change

* remove -icon

charts/stable/pyload/Chart.yaml

@@ -8,7 +8,7 @@ description: pyLoad is a Free and Open Source download manager written in Python
   designed to be extremely lightweight, easily extensible and fully manageable via
   web.
 home: https://github.com/truecharts/apps/tree/master/charts/stable/pyload
-icon: https://truecharts.org/_static/img/appicons/pyload-icon.png
+icon: https://truecharts.org/_static/img/appicons/pyload.png
 keywords:
 - pyload
 - download