Multiple files with spaces

handle multiple files with spaces add long param options update help

docs/10_Installation.md

-# Installation
+## Installation
 
-# Manual installation
+### Manual installation
 
 In short a manual way:
 
 * Copy the bash script somewhere you like.
 * set  execute permissions `chmod 0755 onfilechange.sh`
 
-# Use git
+### Use git
 
 If you have git and want to update the files with a simple git pull
 you can do it that way.
 
-## Get the files
+#### Get the files
 
 ```shell
 cd /opt
 git clone https://gitlab.iml.unibe.ch/iml-open-source/onfilechange.git
 ```
 
-## Make script available anywhere
+#### Make script available anywhere
 
 To have a single file in /usr/local/bin you can create a softlink
 
@@ -28,7 +28,7 @@ cd /usr/local/bin
 ln -s /opt/onfilechange/onfilechange
 ```
 
-## Update
+#### Update script
 
 To start an update you can use