Fix broken link for common.sh

build/README.md

@@ -37,7 +37,7 @@ The following scripts are found in the [`build/`](.) directory. Note that all sc
 
 ## Basic Flow
 
-The scripts directly under [`build/`](.) are used to build and test.  They will ensure that the `kube-build` Docker image is built (based on [`build/build-image/Dockerfile`](build-image/Dockerfile) and after base image's `KUBE_BUILD_IMAGE_CROSS_TAG` from Dockerfile is replaced with one of those actual tags of the base image, like `v1.13.9-2`) and then execute the appropriate command in that container.  These scripts will both ensure that the right data is cached from run to run for incremental builds and will copy the results back out of the container. You can specify a different registry/name and version for `kube-cross` by setting `KUBE_CROSS_IMAGE` and `KUBE_CROSS_VERSION`, see [`build/common.sh`](build/common.sh) for more details.
+The scripts directly under [`build/`](.) are used to build and test.  They will ensure that the `kube-build` Docker image is built (based on [`build/build-image/Dockerfile`](build-image/Dockerfile) and after base image's `KUBE_BUILD_IMAGE_CROSS_TAG` from Dockerfile is replaced with one of those actual tags of the base image, like `v1.13.9-2`) and then execute the appropriate command in that container.  These scripts will both ensure that the right data is cached from run to run for incremental builds and will copy the results back out of the container. You can specify a different registry/name and version for `kube-cross` by setting `KUBE_CROSS_IMAGE` and `KUBE_CROSS_VERSION`, see [`common.sh`](common.sh) for more details.
 
 The `kube-build` container image is built by first creating a "context" directory in `_output/images/build-image`.  It is done there instead of at the root of the Kubernetes repo to minimize the amount of data we need to package up when building the image.