Add README install advice to remove /usr/bin/bollux

diff --git a/README.md b/README.md
index f17a53c..904a4b9 100644 (file)
--- a/README.md
+++ b/README.md
@@ -52,6 +52,9 @@ $ cd bollux
 # make install
 ```
 
+**NOTE** if you installed an older version, make sure to rm /usr/bin/bollux.  
+The new install path is /usr/local/bin.
+
 ## Alternative
 
 ```