Make it clearer that the install instructions must be followed.

aparajita · aparajita · commit 6d888620959f · 2013-12-20T11:38:50.000-08:00
diff --git a/messages/install.txt b/messages/install.txt
@@ -2,9 +2,9 @@ SublimeLinter-pep8
 -------------------------------
 This linter plugin for SublimeLinter provides an interface to pep8.
 
-INSTALLATION
-------------
-Before this plugin will activate, you *must* follow the installation
-instructions here:
+** IMPORTANT! **
+
+Before this plugin will activate, you *must*
+follow the installation instructions here:
 
 https://github.com/SublimeLinter/SublimeLinter-pep8
