userguide: minor path correction

[Adek336]

The following fixes a minor path correction

trunk/haiku/build/jam -> haiku/trunk/build/jam

Index: docs/userguide/en/installation/install-source-linux.html
===================================================================
--- docs/userguide/en/installation/install-source-linux.html	(wersja 31397)
+++ docs/userguide/en/installation/install-source-linux.html	(kopia robocza)
@@ -87,7 +87,7 @@
 
 <p>Now you could already start to build RAW or VMWare images. Before we come to that, however, let's have a look at the <span class="cli">UserBuildConfig</span> that can be used to customize and automate some things.</p>
 
-<p>In <span class="path">trunk/haiku/build/jam/</span> there's a <span class="cli">UserBuildConfig.ReadMe</span> that explains various options.  <b>Don't</b> simply rename it and use it as <span class="cli">UserBuildConfig</span>!</p>
+<p>In <span class="path">haiku/trunk/build/jam/</span> there's a <span class="cli">UserBuildConfig.ReadMe</span> that explains various options.  <b>Don't</b> simply rename it and use it as <span class="cli">UserBuildConfig</span>!</p>
 <p>You start by duplicating the <span class="cli">UserBuildConfig.sample</span> and removing the <span class="cli">.sample</span> suffix to get your <span class="cli">UserBuildConfig</span>. From the <span class="cli">.ReadMe</span> you can copy interesting parts into your config and customize them there.</p>
 
 <ol>

[humdinger]

Applied with hrev31428. Thanks!