build: align minimum build dependencies with ndn-cxx

 * gcc 7.4
 * clang 6.0
 * Xcode 10.0 (11.3 or later recommended)

Change-Id: I365e7b1e2c9b081e512f511bf5beee2487cfc361
diff --git a/docs/release-notes.rst b/docs/release-notes.rst
new file mode 100644
index 0000000..96d796b
--- /dev/null
+++ b/docs/release-notes.rst
@@ -0,0 +1,4 @@
+Release Notes
+=============
+
+.. include:: release-notes/release-notes-0.3.0.rst