Update README.md

Author: sokil

README.md

@@ -55,7 +55,7 @@ class PhpError extends \Sokil\Bitmap
      * Hide errors
      * Set first bit, which represents E_ERROR, to "0"
      */
-    public function showErrors()
+    public function hideErrors()
     {
         $this->unsetBit(0);
         return $this;
@@ -119,4 +119,4 @@ var_dump($error->isWarningsShown));
 // value may be set by mask
 // E_USER_ERROR | E_USER_WARNING is 256 + 512;
 $error->setBitsByMask(E_USER_ERROR + E_USER_WARNING);
-```
+```