Update metadata.txt

Invalid format fixed: description field was invalid due to empty lines and/or new lines starting without spaces

Author: mnboos

metadata.txt

@@ -8,12 +8,10 @@ qgisMinimumVersion=2.18
 qgisMaximumVersion=3.98
 description=Reader (short VT reader) which reads Vector Tiles from various predefined and configurable sources
 about=Plugin which reads vector tiles according to Mapbox' Vector Tiles specification as QGIS layers in a group. Styled vector tiles are typically used as high quality base maps. Sources can be an internet server, an MBTiles file or a directory of files. If an Mapbox GL JSON style is configured, the style is (partially) converted to QGIS styles.
-
-The plugin has connections already configured for the following providers:
-* OpenMapTiles.com with OSM Bright MB GL style (default)
-* Mapcat.com with Mapcat style
-
-This Python plugin uses prebuilt C++ binaries for performance reasons.
+    The plugin has connections already configured for the following providers:
+    * OpenMapTiles.com with OSM Bright MB GL style (default)
+    * Mapcat.com with Mapcat style
+    This Python plugin uses prebuilt C++ binaries for performance reasons.
 version=2.0.3
 author=Martin Boos
 [email protected]