Add extension metadata

Signed-off-by: trivernis <trivernis@protonmail.com>

package.json

@@ -1,8 +1,19 @@
 {
 	"name": "snekdown",
 	"displayName": "Snekdown",
+	"author": {
+		"email": "trivernis@protonmail.com",
+		"name": "Trivernis",
+		"url": "https://github.com/trivernis"
+	},
+	"publisher": "trivernis",
+	"license": "SEE LICENSE IN LICENSE",
+	"repository": {
+		"type": "git",
+		"url": "https://github.com/Trivernis/snekdown-vscode-extension.git"
+	},
 	"description": "Preview and commands for the snekdown markdown flavour",
-	"version": "0.0.1",
+	"version": "0.9.0",
 	"engines": {
 		"vscode": "^1.52.0"
 	},