Update README.md

simgislab · simgislab · commit 1d416ee1e558 · 2015-06-16T12:42:45.000-05:00
diff --git a/README.md b/README.md
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 # quickmapservices_contrib
-Contributed data sources for QuickMapServices plugin
+Contributed data sources for QuickMapServices plugin (https://github.com/nextgis/quickmapservices).
+
+These services are maintained by community. They are not validated and may contain errors, license violations etc. Use at your own risk.
