Add script for publishing dev container template (#16)

* Add publish script

* Set executable mode on script

* v1.1.1

Author: adam-fowler

scripts/publish.sh

@@ -0,0 +1,7 @@
+# This script requires the devcontainer tool for publishing. You can install it with
+#   npm install -g @devcontainers/cli
+# More details can be found here https://github.com/devcontainers/cli#try-it-out
+#
+# When running this script you need to set the environment variable GITHUB_TOKEN. You can
+# use a personal access token for the GITHUB_TOKEN varaiable
+devcontainer templates publish -r ghcr.io -n swift-server/swift-devcontainer-template ./src         

src/swift/devcontainer-template.json

@@ -1,6 +1,6 @@
 {
 	"id": "swift",
-	"version": "1.1.0",
+	"version": "1.1.1",
 	"name": "Swift",
 	"description": "Develop Swift based applications. Includes appropriate runtime args and everything you need to get up and running.",
 	"documentationURL": "https://github.com/swift-server/swift-devcontainer-template/tree/main/README.md",