update README quickstart

.travis.yml

@@ -10,7 +10,6 @@ before_install:
 - travis env copy OPENSSL_IV OPENSSL_KEY --repo just-containers/skaware
 - travis env copy OPENSSL_IV OPENSSL_KEY --repo just-containers/busybox-chroots
 - travis env copy OPENSSL_IV OPENSSL_KEY --repo just-containers/socklog-overlay
-- travis env copy OPENSSL_IV OPENSSL_KEY --repo just-containers/socklog-static
 - travis env copy OPENSSL_IV OPENSSL_KEY --repo just-containers/socklog
 - bash -e ${TRAVIS_BUILD_DIR}/.travis.yml.before_install
 install:

README.md

@@ -35,7 +35,7 @@ Build the following Dockerfile and try this guy out:
 
 ```
 FROM ubuntu
-ADD https://github.com/just-containers/s6-overlay/releases/download/v1.21.2.2/s6-overlay-amd64.tar.gz /tmp/
+ADD https://github.com/just-containers/s6-overlay/releases/download/v1.21.4.0/s6-overlay-amd64.tar.gz /tmp/
 RUN tar xzf /tmp/s6-overlay-amd64.tar.gz -C /
 RUN apt-get update && \
     apt-get install -y nginx && \
@@ -145,7 +145,7 @@ For example:
 
 ```
 FROM busybox
-ADD https://github.com/just-containers/s6-overlay/releases/download/v1.21.2.2/s6-overlay-amd64.tar.gz /tmp/
+ADD https://github.com/just-containers/s6-overlay/releases/download/v1.21.4.0/s6-overlay-amd64.tar.gz /tmp/
 RUN gunzip -c /tmp/s6-overlay-amd64.tar.gz | tar -xf - -C /
 ENTRYPOINT ["/init"]
 ```