This commit fixes broken link to relative address
Signed-off-by: jiseob.jang <jiseob.jang@samsung.com>
2. Cross build `nnfw` for ARM on x86_64 host
-You should prepare RootFS, following [Cross Building for ARM](https://github.sec.samsung.net/STAR/nnfw/blob/master/docs/howto/CrossBuildForArm.md) except ACL build and cross build steps. Then execute below commands. If your RootFS directory is different with below directory, change it to correct path and ensure the path is absolute.
+You should prepare RootFS, following [Cross Building for ARM](./CrossBuildForArm.md) except ACL build and cross build steps. Then execute below commands. If your RootFS directory is different with below directory, change it to correct path and ensure the path is absolute.
```
$ cd nnfw
$ ROOTFS_DIR=$(pwd)/tools/cross/rootfs/arm \