Ajoute un script bin/release pour tagger des versions.

bin/release

+#!/usr/bin/env bash
+TAG="$1"
+git checkout -f -b "release-$TAG" master
+sed -i -e "s/master/$TAG/g" prezbuilder-ci.yml src/index.md README.md
+git add prezbuilder-ci.yml src/index.md README.md
+git commit -m "Prépare la release $TAG"
+git tag -f "$TAG" -m "Release $TAG"
+git checkout master
+git merge --no-ff -s ours "release-$TAG" -m "Merge release branch $TAG"
+git branch -d "release-$TAG"
+