Add tasks for building the website

.vscode/tasks.json

@@ -3,6 +3,45 @@
     // for the documentation about the tasks.json format
     "version": "2.0.0",
     "tasks": [
+        {
+            "label": "Build",
+            "type": "npm",
+            "script": "watch",
+            "group": {
+                "kind": "build",
+                "isDefault": true
+            },
+            "problemMatcher": [
+                {
+                    "owner": "gulp",
+                    "pattern": {
+                        "regexp": ""
+                    },
+                    "background": {
+                        "activeOnStart": true,
+                        "beginsPattern": {
+                            "regexp": "Starting '(?!Watch).*?'"
+                        },
+                        "endsPattern": {
+                            "regexp": "Finished '.*?'"
+                        }
+                    }
+                }
+            ],
+            "isBackground": true,
+            "presentation": {
+                "reveal": "never"
+            }
+        },
+        {
+            "label": "Rebuild",
+            "type": "npm",
+            "script": "rebuild",
+            "problemMatcher": [],
+            "presentation": {
+                "reveal": "never"
+            }
+        },
         {
             "label": "Lint",
             "type": "npm",