Update instruction for building manylinux2010

manylinux1 and the base centos version is too old

BUG=None
TEST=Build a package

Change-Id: I0af9ccdc5dd7b8f268f7a56d89deaea8f9523255
Reviewed-on: https://chromium-review.googlesource.com/1652768
Commit-Ready: ChromeOS CL Exonerator Bot <chromiumos-cl-exonerator@appspot.gserviceaccount.com>
Tested-by: Prathmesh Prabhu <pprabhu@chromium.org>
Legacy-Commit-Queue: Commit Bot <commit-bot@chromium.org>
Reviewed-by: Prathmesh Prabhu <pprabhu@chromium.org>
diff --git a/README.md b/README.md
index 0c8f405..c025db0 100644
--- a/README.md
+++ b/README.md
@@ -58,11 +58,11 @@
 
 Add the manylinux Docker image:
 
-    docker pull quay.io/pypa/manylinux1_x86_64@sha256:a0f4dd1303b10dbbd99f84e6d7e9b6575efd5c3a6b16519a15703a70a5833b4d
+    docker pull quay.io/pypa/manylinux2010_x86_64@sha256:6ccd12df1a01003214df0211f16d2de70d17eba35f8e7b0fff2d66c18cb0434e
 
 Get the image ID:
 
-    docker image ls
+    docker image ls quay.io/pypa/manylinux2010_x86_64
 
 Run the Docker image:
 
@@ -72,7 +72,7 @@
 
     cd /opt/python/cp27-cp27mu
     bin/pip wheel -w /pip_packages foo==1.2.3
-    auditwheel repair -w /pip_packages /pip_packages/foo-1.2.3-cp27-cp27mu-linux_x86_64.whl
+    auditwheel repair --plat manylinux2010_x86_64 -w /pip_packages /pip_packages/foo-1.2.3-cp27-cp27mu-linux_x86_64.whl
 
 Keep the `manylinux` wheel and remove the `linux` wheel.