Fix gd config for 7.4

php/content.md

@@ -57,7 +57,7 @@ RUN apt-get update && apt-get install -y \
 		libfreetype6-dev \
 		libjpeg62-turbo-dev \
 		libpng-dev \
-	&& docker-php-ext-configure gd --with-freetype-dir=/usr/include/ --with-jpeg-dir=/usr/include/ \
+	&& docker-php-ext-configure gd --with-freetype --with-jpeg \
 	&& docker-php-ext-install -j$(nproc) gd
 ```