adding 3.4.2

Signed-off-by: Vanessa Sochat <[email protected]>

Dockerfile

@@ -30,8 +30,8 @@ LABEL Maintainer [email protected]
 RUN mkdir -p /usr/local/var/singularity/mnt && \
     mkdir -p $GOPATH/src/github.com/sylabs && \
     cd $GOPATH/src/github.com/sylabs && \
-    wget https://github.com/sylabs/singularity/releases/download/v3.4.1/singularity-3.4.1.tar.gz && \
-    tar -xzvf singularity-3.4.1.tar.gz && \
+    wget https://github.com/sylabs/singularity/releases/download/v3.4.2/singularity-3.4.2.tar.gz && \
+    tar -xzvf singularity-3.4.2.tar.gz && \
     cd singularity && \
     ./mconfig -p /usr/local && \
     make -C builddir && \

README.md

@@ -6,7 +6,7 @@ versioned branches).
 
 ## Versions
 
-See the [master branch](https://github.com/singularityhub/singularity-docker) for a complete list of versions, and the  [singularityware/singularity](https://hub.docker.com/r/singularityware/singularity/) repository on Docker Hub.
+See the [master branch](https://github.com/singularityhub/singularity-docker) for a complete list of versions, and the  [singularity/singularity](https://quay.io/repository/singularity/singularity) container on Quay.io. Older versions can be found in the [singularityware/singularity](https://hub.docker.com/r/singularityware/singularity/) repository on Docker Hub.
 
 ## Use Cases