[PR #2095] Small wording improvement in Manual Installation section of README.

README.md

@@ -137,7 +137,7 @@ dependencies: [
 
 ### Manually
 
-If you prefer not to use either of the aforementioned dependency managers, you can integrate Alamofire into your project manually.
+If you prefer not to use any of the aforementioned dependency managers, you can integrate Alamofire into your project manually.
 
 #### Embedded Framework