diff --git a/docs/usage.md b/docs/usage.md
index 5045073..e2290d6 100644
--- a/docs/usage.md
+++ b/docs/usage.md
@@ -27,7 +27,7 @@ system:
 sudo curl -L --output /usr/local/bin/pie https://github.com/php/pie/releases/latest/download/pie.phar && sudo chmod +x /usr/local/bin/pie
 ```
 
-## Prerequisities for PIE
+## Prerequisites for PIE
 
 Running PIE requires PHP 8.1 or newer. However, you may still use PIE to install
 an extension for an older version of PHP.
@@ -35,11 +35,11 @@ an extension for an older version of PHP.
 Additionally to PHP, PIE requires the following tools to be available on your
 system in order to download, build and install extensions:
 
-- `git` to download the extension source code ;
-- `autoconf`, `automake`, `libtool`, `m4`, `make`, and `gcc` to build the extension ;
-- `php-config` to determine the PHP configuration ;
-- The `zip` extension enabled for the PHP version running PIE ;
-- `phpize` to prepare the extension for building.
+- The `zip` extension enabled for the PHP version running PIE, or `git` to
+  download the extension source code
+- `autoconf`, `automake`, `libtool`, `m4`, `make`, and `gcc` to build the extension
+- PHP development tools (such as `php-config` and `phpize`) to prepare the
+  extension for building.
 
 Also, each extension may have its own requirements, such as additional libraries.