documentation: use git repo address instead of SVN

README.linux

@@ -42,11 +42,11 @@ On Arch-based distributions, there is a development package available for VCMI o
 II. Getting the sources
 
 VCMI is still in development. We recommend the following initial directory structure:
-trunk
-trunk/vcmi -> contains sources and is under git control
-trunk/build -> contains build output, makefiles, object files,...
+.
+├── vcmi -> contains sources and is under git control
+└── build -> contains build output, makefiles, object files,...
 
-You can get latest sources with subversion:
+You can get latest sources with:
   git clone https://github.com/vcmi/vcmi.git
 
 III. Compilation

vcmimanual.tex

@@ -186,7 +186,7 @@ As yet modification of game is not supported.
 \subsection{The game is not working, it crashes and I get strange console messages.}
 Report your bug. Details are described \hyperref[Feedback]{here}. The sooner you tell the team about the problem, the sooner it will be resolved. Many problems come just from improper installation or system settings.
 \subsection{What is the current status of the project?}
-Check \href{http://wiki.vcmi.eu/index.php?title=VCMI}{Wiki}, \href{http://forum.vcmi.eu/viewforum.php?f=1}{release notes} or \href{https://vcmi.svn.sourceforge.net/svnroot/vcmi/trunk/ChangeLog}{changelog}. The best place to watch current changes as they are committed is the \href{http://sourceforge.net/apps/trac/vcmi/timeline}{Sourceforge Trac}. The game is quite playable by now, although many important features are missing.
+Check \href{http://wiki.vcmi.eu/index.php?title=VCMI}{Wiki}, \href{http://forum.vcmi.eu/viewforum.php?f=1}{release notes} or \href{https://github.com/vcmi/vcmi/blob/develop/ChangeLog}{changelog}. The best place to watch current changes as they are committed to the develop branch is the \href{https://github.com/vcmi/vcmi/commits/develop}{Github commits page}. The game is quite playable by now, although many important features are missing.
 \subsection{I have a great idea!}
 Share it on \href{http://forum.vcmi.eu/index.php}{VCMI forum} so all team members can see it and share their thoughts. Remember, brainstorming is good for your health.
 \subsection{Are you going to support Horn of The Abyss / Wog 3.59 / Grove Town etc.?}