Merge pull request sergei-mironov#40 from alexandersolovyov/readme_co…

…rrections

Change information about 'libxkbfile-dev' in README

README.md

@@ -18,9 +18,8 @@ Xkb-switch is licensed under the GNU GPLv3, see COPYING for details.
 Installing
 ----------
 
-Make sure you have package *libxkbfile-dev* (or *libxkbfile-devel* for Fedora)
-installed. _CMake Hacker wanted: please help me to express this dependency in
-CMakeLists.txt_.
+Package *libxkbfile-dev* (or *libxkbfile-devel* for Fedora) needs to be
+installed to build the program.
 
 To build the program manually, unpack the tarball and cd to source directory.
 [Nix](http://nixos.org/nix) users may use `nix-shell` to enter the minimally