diff --git a/README.rst b/README.rst
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+++ b/README.rst
@@ -1,6 +1,18 @@
 PaymentServer
 =============
 
+PaymentServer maintains the state of a voucher database with respect to payments.
+It receives payment notifications from payment processors and notes this in the database.
+
+Currently, Stripe is supported.
+
+Building
+--------
+
+Build using Stack::
+
+  $ stack build
+
 Testing
 -------