Created Configuration of worlds (markdown)

Configuration-of-worlds.md

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+# Configuration of worlds #
+
+There are two parts in `configuration.txt` that need to be checked when setting up Dynmap for multiple worlds. The first one is only for server-side rendering of the maps. Another part (under web-section) is about what and how the browser should show the map.
+
+An example of the first server-side part:
+```yaml
+# The maptypes Dynmap will use to render.
+worlds:
+  - name: world
+    maps:
+      - class: org.dynmap.kzedmap.KzedMap
+        renderers:
+          - class: org.dynmap.kzedmap.DefaultTileRenderer
+            prefix: t
+            maximumheight: 127
+          - class: org.dynmap.kzedmap.CaveTileRenderer
+            prefix: ct
+            maximumheight: 127
+  - name: nether
+    maps:
+      - class: org.dynmap.kzedmap.KzedMap
+        renderers:
+          - class: org.dynmap.kzedmap.DefaultTileRenderer
+            prefix: nt
+            maximumheight: 64
+```
+
+An example of the world configuration under the web-section:
+```yaml
+web:
+    defaultworld: world
+    worlds:
+      - title: World
+        name: world
+        maps:
+          - type: KzedMapType
+            title: Surface
+            name: surface
+            prefix: t
+          - type: KzedMapType
+            title: Cave
+            name: cave
+            prefix: ct
+      - title: Nether
+        name: nether
+        maps:
+          - type: KzedMapType
+            title: Surface
+            name: nether
+            prefix: nt
+```
+
+Of these two parts, make sure the names of the worlds match up with your world-directories (case-sensitive!).
+Also make sure the prefixes of the maps under the web-section matches with the prefixes of the first part.