Moved RPB contribute to inside RPB folder

Signed-off-by: Robert Wolff <robert.wolff@linaro.org>

Reference-Platform/Contribute/DebianCentOS/README.md

@@ -0,0 +1,23 @@
+# Contributions to OpenEmbedded Reference Platform Build
+
+## Type of Contribution
+
+### New Package
+
+###### Contribute
+
+- Submit package to upstream
+   - https://wiki.centos.org/HowTos/Packages/ContributeYourRPMs
+- Open a bug at  https://bugs.linaro.org/ (ReferencePlatform) requesting the package to be included in Linaro Overlay
+
+***
+
+### Package changes or fixes
+
+###### Contribute
+
+- Submit package change to upstream
+   - https://wiki.centos.org/HowTos/Packages/ContributeYourRPMs
+- Open a bug at  https://bugs.linaro.org/ (ReferencePlatform) with the package change that is required
+
+***