message: fixing links to documentation
diff: @@ -10,8 +10,8 @@ This image is prepared to be used on amazee.io which leverages OpenShift. There
  - Folder permissions are automatically adapted with [`fix-permissions`](https://github.com/sclorg/s2i-base-container/blob/master/core/root/usr/bin/fix-permissions) so this image will work with a random user and therefore also on OpenShift.
  - The `/usr/local/etc/php/php.ini` and `/usr/local/etc/php-fpm.conf` plus all files within `/usr/local/etc/php-fpm.d/` are parsed through [envplate](https://github.com/kreuzwerker/envplate) with an container-entrypoint.
  -- See the [Dockerfile](./Dockerfile) for installed php extensions
  -- To install further extenstions, extend your Dockerfile from this image, and install extensions according to the docs, under the heading ["How to install more PHP extensions"](https://hub.docker.com/_/php/)
  +- See the [Dockerfile](https://github.com/amazeeio/lagoon/blob/master/images/php/fpm/Dockerfile) for installed php extensions
  +- To install further extenstions, extend your Dockerfile from this image, and install extensions according to the docs, under the heading ["How to install more PHP extensions"](https://github.com/docker-library/docs/blob/master/php/README.md#how-to-install-more-php-extensions)
  ## Included php config
  