fix cargo new invocation

Jorge Aparicio · Jorge Aparicio · commit b83ad5aa07ad · 2017-03-28T15:15:56.000-05:00
diff --git a/README.md b/README.md
@@ -6,7 +6,7 @@
 ## Usage
 
 ```
-$ cargo new stm32f100xx --git https://github.com/japaric/cortex-m-quickstart
+$ cargo new stm32f100xx --template https://github.com/japaric/cortex-m-quickstart
 ```
 
 Where `stm32f100xx` is the name of the microcontroller family you are
