Update README.md

Author: JulianPrieber

README.md

@@ -91,7 +91,7 @@ Both HTTP and HTTPS are supported and exposed by default.
 - `LOG_LEVEL` (the [log level](https://httpd.apache.org/docs/2.4/fr/mod/core.html#loglevel), defaults to `info`)
 - `TZ` (the [timezone](https://www.php.net/manual/timezones.php), defaults to `UTC`)
 - `PHP_MEMORY_LIMIT` (the [memory-limit](https://www.php.net/manual/ini.core.php#ini.memory-limit), defaults to `256M`)
-- `UPLOAD_MAX_FILESIZE` (the [memory-limit](https://www.php.net/manual/en/ini.core.php#ini.upload-max-filesize), defaults to `8M`)
+- `UPLOAD_MAX_FILESIZE` (the [upload_max_filesize](https://www.php.net/manual/en/ini.core.php#ini.upload-max-filesize), defaults to `8M`)
 
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