Use "Emacs Lisp" instead "lisp", that pointed out by checkdoc

zonuexe · zonuexe · commit cce786c881b3 · 2018-02-10T04:24:21.000+09:00
diff --git a/php-mode.el b/php-mode.el
@@ -44,7 +44,7 @@
 
 ;; ## Usage
 
-;; Put this file in your Emacs lisp path (eg. site-lisp) and add to
+;; Put this file in your Emacs Lisp path (eg. site-lisp) and add to
 ;; your .emacs file:
 
 ;;   (require 'php-mode)
