Added script which checks cross-document links

Added a script which reads all .md files and checks if the links are valid.
Also corrected two mistakes found by this script.

Documentation/About/About-MaxScale.md

@@ -19,5 +19,5 @@ Bugs can be reported in the MariaDB Jira
 ## Installing MaxScale
 Information about installing MaxScale, either from a repository or by building from source code, is included in the [MariaDB MaxScale Installation Guide](../Getting-Started/MariaDB-MaxScale-Installation-Guide.md).
 
-The same guide also provides basic information on running MaxScale. More detailed information about configuring MaxScale is given in the [Configuration Guide](/Documentation/Getting-Started/Configuration-Guide.md).
+The same guide also provides basic information on running MaxScale. More detailed information about configuring MaxScale is given in the [Configuration Guide](../Getting-Started/Configuration-Guide.md).
 

Documentation/Getting-Started/MariaDB-MaxScale-Installation-Guide.md

@@ -36,7 +36,7 @@ An example configuration file is installed into the `/etc/` folder. This file sh
 
 ## Building MaxScale From Source Code
 
-Alternatively you may download the MaxScale source and build your own binaries. To do this, refer to the separate document [Building MaxScale from Source Code](/Documentation/Getting-Started/Building-MaxScale-from-Source-Code.md)
+Alternatively you may download the MaxScale source and build your own binaries. To do this, refer to the separate document [Building MaxScale from Source Code](Building-MaxScale-from-Source-Code.md)
 
 ## Configuring MaxScale
 

Documentation/check_links.sh

@@ -0,0 +1,16 @@
+#!/bin/bash
+
+homedir=$(pwd)
+
+for file in $(find . -name '*.md')
+do
+    cd "$(dirname $file)"
+    for i in `grep -o '\[.*\]([^#].*[.]md)' $(basename $file)| sed -e 's/\[.*\](\(.*\))/\1/'`
+    do
+        if [ ! -f $i ]
+        then
+            echo "Link $i in $file is not correct!"
+        fi
+    done
+    cd "$homedir"
+done