Updated Compile from source in Linux (markdown)

Compile-from-source-in-Linux.md

@@ -300,7 +300,7 @@ sudo udevadm trigger
 <h3>XTRX</h3>
 
 Prerequisites:
-<pre><code>sudo apt-get -y install build-essential libusb-1.0-0-dev cmake dkms python3-cheetah
+<pre><code>sudo apt-get -y install build-essential libusb-1.0-0-dev cmake dkms python3-cheetah libqcustomplot-dev
 </code></pre>
 Prerequisites 18.04:
 <pre><code>sudo apt-get -y install build-essential libusb-1.0-0-dev cmake dkms python3 python3-pip