Fixed typo reported by ubante.
diff --git a/Install-unix.txt b/Install-unix.txt
index 4a50064..d9687b1 100644
--- a/Install-unix.txt
+++ b/Install-unix.txt
@@ -522,7 +522,7 @@
       imperfect for PerlMagick since Perl no longer supports an uninstall
       target.
   
-  In most cases you will simply wand to compile ImageMagick with this command:
+  In most cases you will simply want to compile ImageMagick with this command:
   
     $magick> make