Update README.md

Author: DivineOmega

README.md

@@ -1,5 +1,5 @@
 # Email Structure Parser
-Given an IMAP stream and a message nubmer, this library will parse the 
+Given an IMAP stream and a message number, this library will parse the 
 structure of multipart emails.
 
 ## Installation
@@ -46,4 +46,4 @@ var_dump($parts['TEXT/HTML']);
 foreach($parts['IMAGE/PNG'] as $image) {
     file_put_contents($image->name, $image->content);
 }
-```
+```