Official Sheffield ARMBand micro:bit program

Revision:
0:b9164b348919
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/microbit/microbit-dal/BLE_API/CONTRIBUTING.md	Mon Oct 17 12:41:20 2016 +0000
@@ -0,0 +1,7 @@
+# Hello!
+We are an open source project of [ARM mbed](https://www.mbed.com). Contributions via [pull request](https://github.com/ARMmbed/ble/pulls), and [bug reports](https://github.com/ARMmbed/ble/issues) are welcome!
+
+Please submit your pull request to the `develop` branch of [this module](https://github.com/ARMmbed/ble/tree/develop). Commits to develop will be merge into the master branch at the time of the next release.
+
+# Contributor agreement
+For your pull request to be accepted, we will need you to agree to our [contributor agreement](https://developer.mbed.org/contributor_agreement/) to give us the necessary rights to use and distribute your contributions. (To click through the agreement create an account on mbed.com and log in.)
\ No newline at end of file