0.3.1: Update README.md

• Remove version-less PHP apt-package (#2 – thanks @strarsis)
• Update README

0.3.0

Add {{ php_version }} for dynamically addressing the PHP version set within Trellis

0.2.9: Update default config

Set `redis_maxmemory_policy` to remove keys if `redis_maxmemory` is reached (via  `volatile-ttl`).

0.2.8

Update README.md

0.2.7.1: Update main.yml

Increase default memory limit (`redis_maxmemory`) to 2GB

0.2.7

Update README.md

0.2.6.1

Update README.md