Update README code format and to use setq-local

setq-local was added in Emacs 24.3 (released in 2013).

README.md

@@ -7,20 +7,19 @@ Example config:
 ```elisp
 ;;;###autoload
 (defun my-php-personal-hook ()
-  (set (make-local-variable 'company-minimum-prefix-length) 0)
-  (set (make-local-variable 'company-tooltip-align-annotations) t)
-  (set (make-local-variable 'company-idle-delay) 0.1)
-  (set (make-local-variable 'company-backends) '(phpinspect-company-backend))
+  (setq-local company-minimum-prefix-length 0)
+  (setq-local company-tooltip-align-annotations t)
+  (setq-local company-idle-delay 0.1)
+  (setq-local company-backends '(phpinspect-company-backend))
 
   ;; Shortcut to add use statements for classes you use.
   (define-key php-mode-map (kbd "C-c u") 'phpinspect-fix-uses-interactive)
-  
+
   ;; Shortcuts to quickly search/open files of PHP classes.
   (global-set-key (kbd "C-c a") 'phpinspect-find-class-file)
   (global-set-key (kbd "C-c c") 'phpinspect-find-own-class-file)
 
   (phpinspect-mode))
-  
-  (add-hook 'php-mode-hook 'my-php-personal-hook)
 
+(add-hook 'php-mode-hook #'my-php-personal-hook)
 ```