Update quick_install.rst (#205)

fix extra line spacing in command

source/getting_started/quick_install.rst

@@ -32,8 +32,8 @@ Paste the following commands in the console window **one line at a time**.
 ::
 
  cd /usr/src/fusionpbx-install.sh/debian && ./install.sh
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- |
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+|
 
 If using **Debian on Proxmox LXC** containers please run the following **BEFORE** starting the FusionPBX install.