Add note about usage of UDPC header in docs

diff --git a/src/UDPC.h b/src/UDPC.h
index fca1b6cad9e27a502b2f97830732d800e17dfec2..7c73d4f987f5c3b567891e62a4a37647b62b9793 100644 (file)
--- a/src/UDPC.h
+++ b/src/UDPC.h
@@ -1,6 +1,9 @@
 /*!
  * \mainpage UDPConnection
  * \ref UDPC.h
+ *
+ * To use this library, it must be compiled. Only the \ref UDPC.h header is
+ * necessary as UDPC_Defines.hpp is only meant to be used internally by UDPC.
  */
 
 /*!