Update README.md

README.md

@@ -21,31 +21,31 @@
 `# download toolchain && Source toolchain` \
 `gcc_target=$(${CXX} -v 2>&1 | grep Target | cut -d " " -f 2 | sed 's/linux-gnu/linux/g' | sed 's/unknown-nto-qnx/qnx/g')` \
 `if [[ ! "${gcc_target}" =~ "aarch64-linux" ]] ; then` \
-`	mkdir -p toolchain/gcc_aarch64_linux` \
-`	cd toolchain/gcc_aarch64_linux` \
-`		# find history, or download_toolchain` \
-`		if [ ! -n "$(find . -name setup_env.sh -type f)" ]; then` \
-`			wget https://codechina.csdn.net/codefast/toolchain/-/raw/master/download_toolchain.sh` \
-`			bash download_toolchain.sh aarch64 linux` \
-`		fi` \
-`		# source` \
-`		source gcc-***/script/setup_env.sh` \
-`		# return` \
-`		cd ../..` \
+`  mkdir -p toolchain/gcc_aarch64_linux` \
+`  cd toolchain/gcc_aarch64_linux` \
+`    # find history, or download_toolchain` \
+`    if [ ! -n "$(find . -name setup_env.sh -type f)" ]; then` \
+`      wget https://codechina.csdn.net/codefast/toolchain/-/raw/master/download_toolchain.sh` \
+`      bash download_toolchain.sh aarch64 linux` \
+`    fi` \
+`    # source` \
+`    source gcc-***/script/setup_env.sh` \
+`    # return` \
+`    cd ../..` \
 `fi` \
 \
 `# download toolchain && Source toolchain` \
 `gcc_target=$(${CXX} -v 2>&1 | grep Target | cut -d " " -f 2 | sed 's/linux-gnu/linux/g' | sed 's/unknown-nto-qnx/qnx/g')` \
 `if [[ ! "${gcc_target}" =~ "aarch64-qnx" ]] ; then` \
-`	mkdir -p toolchain/gcc_aarch64_qnx` \
-`	cd toolchain/gcc_aarch64_qnx` \
-`		# find history, or download_toolchain` \
-`		if [ ! -n "$(find . -name setup_env.sh -type f)" ]; then` \
-`			wget https://codechina.csdn.net/codefast/toolchain/-/raw/master/download_toolchain.sh` \
-`			bash download_toolchain.sh aarch64 qnx mini` \
-`		fi` \
-`		# source` \
-`		source gcc-***/script/setup_env.sh` \
-`		# return` \
-`		cd ../..` \
+`  mkdir -p toolchain/gcc_aarch64_qnx` \
+`  cd toolchain/gcc_aarch64_qnx` \
+`    # find history, or download_toolchain` \
+`    if [ ! -n "$(find . -name setup_env.sh -type f)" ]; then` \
+`      wget https://codechina.csdn.net/codefast/toolchain/-/raw/master/download_toolchain.sh` \
+`      bash download_toolchain.sh aarch64 qnx mini` \
+`    fi` \
+`    # source` \
+`    source gcc-***/script/setup_env.sh` \
+`    # return` \
+`    cd ../..` \
 `fi` \