Add a script to have consistents tags

scripts/git-tag.sh

@@ -0,0 +1,13 @@
+#!/bin/sh
+
+CURRENT_VERSION=$(grep -E "^version\s?=" Cargo.toml | cut --delimiter='"' --fields=2)
+TAG="v$CURRENT_VERSION"
+
+if cargo publish --dry-run; then
+	echo "Creating tag: $TAG"
+	echo "Do not forget to push it: git push origin $TAG"
+
+	git tag -a "$TAG" -m "Version $CURRENT_VERSION"
+else
+	exit $?
+fi