Merge pull request #262 from mgunyho/patch-1

Add Wayland instructions to "not implemented error" section

docs/index.rst

@@ -49,8 +49,9 @@ You may get an error message that says: "Pyperclip could not find a copy/paste m
 
 In order to work equally well on Windows, Mac, and Linux, Pyperclip uses various mechanisms to do this. Currently, this error should only appear on Linux (not Windows or Mac). You can fix this by installing one of the copy/paste mechanisms:
 
-- ``sudo apt-get install xsel`` to install the xsel utility.
-- ``sudo apt-get install xclip`` to install the xclip utility.
+- ``sudo apt-get install xsel`` to install the ``xsel`` utility (for X11).
+- ``sudo apt-get install xclip`` to install the ``xclip`` utility (for X11).
+- ``sudo apt-get install wl-clipboard`` to install the ``wl-clipboard`` utility (for Wayland).
 - ``pip install gtk`` to install the gtk Python module.
 - ``pip install PyQt4`` to install the PyQt4 Python module.