change: fetch method for source url in README.md

Author: 8joshua88

README.md

@@ -32,7 +32,7 @@ LICENSE = "MIT"
 
 inherit cargo
 
-SRC_URI = "gitsm://github.com/rust-embedded/gpio-utils.git;protocol=https;branch=master"
+SRC_URI = "git://github.com/rust-embedded/gpio-utils.git;protocol=https;branch=master"
 SRCREV="02b0658cd7e13e46f6b1a5de3fd9655711749759"
 S = "${WORKDIR}/git"
 LIC_FILES_CHKSUM = "file://LICENSE-MIT;md5=935a9b2a57ae70704d8125b9c0e39059"