Update README.md

Author: rdmueller

README.md

@@ -10,7 +10,7 @@ create a bash script within the root of your project like this one:
 doctoolchain.sh
 ```bash
 #!/usr/bin/env bash
-docker run --rm -it --entrypoint /bin/bash -v ${PWD}:/project rdmueller/doctoolchain:rc-1.2.0 \
+docker run --rm -it --entrypoint /bin/bash -v ${PWD}:/project rdmueller/doctoolchain:rc-2.0.0-rc14 \
 -c "doctoolchain . $1 $2 $3 $4 $5 $6 $7 $8 $9 -PinputPath=src/main/asciidoc -PmainConfigFile=config/docToolchain.groovy && exit"
 ```