add Scott's link checker script, and fix what it finds

Signed-off-by: Sven Dowideit <SvenDowideit@home.org.au>

docs/sources/installation/amazon.md

@@ -40,10 +40,10 @@ over to the [User Guide](/userguide).
 ## Standard Ubuntu Installation
 
 If you want a more hands-on installation, then you can follow the
-[*Ubuntu*](../ubuntulinux/#ubuntu-linux) instructions installing Docker
-on any EC2 instance running Ubuntu. Just follow Step 1 from [*Amazon
-QuickStart*](#amazon-quickstart) to pick an image (or use one of your
+[*Ubuntu*](/installation/ubuntulinux) instructions installing Docker
+on any EC2 instance running Ubuntu. Just follow Step 1 from the Amazon
+QuickStart above to pick an image (or use one of your
 own) and skip the step with the *User Data*. Then continue with the
-[*Ubuntu*](../ubuntulinux/#ubuntu-linux) instructions.
+[*Ubuntu*](/installation/ubuntulinux) instructions.
 
 Continue with the [User Guide](/userguide/).

docs/sources/installation/binaries.md

@@ -77,7 +77,7 @@ need to add `sudo` to all the client commands.
 > **Warning**: 
 > The *docker* group (or the group specified with `-G`) is root-equivalent;
 > see [*Docker Daemon Attack Surface*](
-> /articles/security/#dockersecurity-daemon) details.
+> /articles/security/#docker-daemon-attack-surface) details.
 
 ## Upgrades
 

docs/sources/installation/ubuntulinux.md

@@ -240,7 +240,7 @@ alternative group.
 > **Warning**: 
 > The `docker` group (or the group specified with the `-G` flag) is
 > `root`-equivalent; see [*Docker Daemon Attack Surface*](
-> /articles/security/#dockersecurity-daemon) for details.
+> /articles/security/#docker-daemon-attack-surface) for details.
 
 **Example:**