HelloWorld OS 5.13

Revision:
0:ae9fa2651603
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/.gitignore	Mon Aug 26 12:47:56 2019 +0000
@@ -0,0 +1,4 @@
+.build
+.mbed
+projectfiles
+*.py*