Documentation fixes

Change-Id: I7524a11ab6c45d38c4fcc1af1009951caa173333
diff --git a/docs/install.md b/docs/install.md
index a011453..00844f6 100644
--- a/docs/install.md
+++ b/docs/install.md
@@ -66,8 +66,8 @@
 ```
 
 Using the `-v` option is required to install Vagrant for running a [Virtual Pod
-(CiaB)](install_virtual.md), whereas `-d` is required to install Docker for a
-[Local Workflow](/xos/dev/workflow_local.md).
+(CiaB)](install_virtual.md) or [Physical Pod](install_physical.md), whereas `-d`
+is required to install Docker for a [Local Workflow](/xos/dev/workflow_local.md).
 
 The `-p` option downloads a patch from gerrit, and the syntax for this is
 `<project path>:<changeset>/<revision>`.  It can be used multiple
diff --git a/docs/install_physical.md b/docs/install_physical.md
index b09c303..590463d 100644
--- a/docs/install_physical.md
+++ b/docs/install_physical.md
@@ -259,6 +259,13 @@
 This documentation assumes that you checked out the CORD source tree into
 `~/cord`.
 
+#### Give "sudoer" permissions (no password)
+
+```
+sudo adduser YOUR_USER_NAME sudo && \
+echo 'YOUR_USER_NAME ALL=(ALL) NOPASSWD:ALL' | sudo tee --append /etc/sudoers.d/90-cloud-init-users
+```
+
 ### Head Node
 
 It should run Ubuntu 14.04 LTS.  Then, configure the following.