added/fixed default start command

CHANGELOG.md

@@ -4,6 +4,9 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/).
 
 ## [Unreleased]
+## 2021-06-20
+### Added
+- Default start command added - must no longer be provided.
 
 ## 2021-06-19
 ### Added

Dockerfile

@@ -23,3 +23,4 @@ RUN chmod uga+x /usr/local/bin/install-php-extensions && sync && \
 COPY docker-php-entrypoint-custom /usr/local/bin/
 RUN chmod 775 /usr/local/bin/docker-php-entrypoint-custom
 ENTRYPOINT ["docker-php-entrypoint-custom"]
+CMD ["php-fpm"]