📖 'Number of' is used with countable nouns [skip ci]

docs/guide/start-installation.md

@@ -46,7 +46,7 @@ If you had Composer already installed before, make sure you use an up to date ve
 by running `composer self-update`.
 
 > Note: During the installation of Yii, Composer will need to request a lot of information from the Github API.
-> The amount of requests depends on the number of dependencies your application has and may be bigger than the
+> The number of requests depends on the number of dependencies your application has and may be bigger than the
 > **Github API rate limit**. If you hit this limit, Composer may ask for your Github login credentials to obtain
 > a Github API access token. On fast connections you may hit this limit earlier than Composer can handle so we
 > recommend to configure the access token before installing Yii.