Added description

Signed-off-by: Alexander Borsuk <me@alex.bio>

config.toml

@@ -5,6 +5,7 @@ base_url = "https://organicmaps.app"
 compile_sass = true
 
 title = "Organic Maps"
+description = "Free Android & iOS offline maps app for travelers, tourists, hikers, and cyclists based on OpenStreetMap data. It is a privacy-focused, open-source fork of Maps.me app (previously known as MapsWithMe), maintained by the same people who created MapsWithMe in 2011."
 author = "hello@organicmaps.app"
 generate_feed = true
 feed_filename = "rss.xml"