Added an about file#

Teams/Betelgeuse/ABOUT.md

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+#Betelgeuse
+
+We are Android developers from Dnipropetrovsk, Ukraine.
+
+##About us
+
+We are making the world better.
+
+##Technologies we familiar
+
+- Java
+- Android
+- Gradle, Maven, And build systems
+- Google services (APIs)
+- Facebook, Twitter, Google+, VK APIs
+- Retrofit, Picasso, EventBus, Glide, Universal Image Loader
+- SQLite database
+- JSON & XML types
+- NDK