Update z-wave.markdown (home-assistant#1180)

mikenicholson · Landrash · commit 0e436f8b9b67 · 2016-10-23T12:45:09.000+02:00
* Update z-wave.markdown 
`checkinstall` must be installed before being able to generate a package.
diff --git a/source/getting-started/z-wave.markdown b/source/getting-started/z-wave.markdown
@@ -44,7 +44,10 @@ $ sudo PYTHON_EXEC=$(which python3) make install
 <p class='note'>
 Instead of `make install`, you can alternatively build your own python-openzwave package which can be easily uninstalled:
 
-```$ sudo PYTHON_EXEC=$(which python3) checkinstall --pkgname python-openzwave --pkgversion 1.0 --provides python-openzwave```
+```bash
+$ sudo apt-get install -y checkinstall
+$ sudo PYTHON_EXEC=$(which python3) checkinstall --pkgname python-openzwave --pkgversion 1.0 --provides python-openzwave
+```
 
 </p>
 
