Add nodejs engines version

package.json

@@ -1,26 +1,29 @@
 {
-  "name": "logseq",
-  "version": "0.0.1",
-  "private": true,
-  "devDependencies": {
-    "shadow-cljs": "2.8.81"
-  },
-  "scripts": {
-    "watch": "clj -A:cljs watch app",
-    "release": "clj -A:cljs release app",
-    "clean": "rm -rf target; rm -rf resources/public/js/compiled; rm -rf resources/public/js/cljs-runtime"
-  },
-  "dependencies": {
-    "browserfs": "^1.4.3",
-    "dev": "^0.1.3",
-    "isomorphic-git": "^1.3.1",
-    "mldoc_org": "^0.2.6",
-    "purgecss": "^2.1.0",
-    "react": "^16.12.0",
-    "react-dom": "^16.12.0",
-    "react-textarea-autosize": "^7.1.2",
-    "react-transition-group": "^4.3.0",
-    "showdown": "^1.9.1",
-    "tailwindcss": "^1.2.0"
-  }
+    "name": "logseq",
+    "engines": {
+        "node": "12.16.x"
+    },
+    "version": "0.0.1",
+    "private": true,
+    "devDependencies": {
+        "shadow-cljs": "2.8.81"
+    },
+    "scripts": {
+        "watch": "clj -A:cljs watch app",
+        "release": "clj -A:cljs release app",
+        "clean": "rm -rf target; rm -rf resources/public/js/compiled; rm -rf resources/public/js/cljs-runtime"
+    },
+    "dependencies": {
+        "browserfs": "^1.4.3",
+        "dev": "^0.1.3",
+        "isomorphic-git": "^1.3.1",
+        "mldoc_org": "^0.2.6",
+        "purgecss": "^2.1.0",
+        "react": "^16.12.0",
+        "react-dom": "^16.12.0",
+        "react-textarea-autosize": "^7.1.2",
+        "react-transition-group": "^4.3.0",
+        "showdown": "^1.9.1",
+        "tailwindcss": "^1.2.0"
+    }
 }