Fix README: 'A program' -> 'An example'

README.md

diff --git a/README.md b/README.md
index 2dbaad2..a2bad2b 100644
--- a/README.md
+++ b/README.md
@@ -89,7 +89,7 @@
 make <platform> [FEATURES=alloc]
 ```
 
-A program can be flashed to your board after the build process by running:
+An example can be flashed to your board after the build process by running:
 
 ```shell
 make flash-<platform> EXAMPLE=<example>