README update

README

 Dependencies :
 --------------
 
-From tarball :
---------------
-
-./configure
-make
-#run tests
-make check
-
-sudo make install
+doxygen (documentation & manpage generation)
+check (unit test framework)
 
-From git repo :
----------------
+Cloning git repo :
+------------------
 
 git clone https://git.yannweb.net/yannweb/ttail.git
 cd ttail
-
 #run aclocal automake and autoconf
 ./bootstrap.sh
 
+Compilation :
+-------------
 ./configure
 make
+#Then you can found the executable in ./src/ttail
+
 #run tests
 make check
 
-sudo make install
+
+Installation :
+--------------
+
+#Warning : not tested
+make install
+