docs(demo): link to old documentation (closes #5211)

apps/edit-docs/demo/root/Trilium Demo/Tech/Linux/Bash scripting/While loop.html

@@ -16,18 +16,32 @@
         <p>Documentation: <a href="http://tldp.org/LDP/Bash-Beginners-Guide/html/sect_09_02.html">http://tldp.org/LDP/Bash-Beginners-Guide/html/sect_09_02.html</a>
         </p><pre><code class="language-text-x-sh">#!/bin/bash
 
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 # This script opens 4 terminal windows.
 
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 i="0"
 
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 while [ $i -lt 4 ]
 
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 do
 
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     xterm &amp;
 
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     i=$[$i+1]
 
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 done</code></pre>
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