chore: add development environment start script (doocs#373)

* feat: add javascript solution to lcci problem: No.02.01.Remove Duplicate Node

* feat: add javascript solution to lcci problem: No.02.02.Kth Node From End of List

* feat: add javascript solution to lcci problem: No.02.03.Delete Middle Node

* feat: add javascript solution to lcci problem: No.17.04.Missing Number

* feat: add javascript solution to lcci problem: No.17.10.Find Majority Element

* feat: add javascript solution to lcci problem: No.01.08.Zero Matrix

* chore: add development environment  start script

Author: zhaocchen

package.json

@@ -0,0 +1,8 @@
+{
+  "scripts": {
+    "dev": "docsify serve"
+  },
+  "dependencies": {
+    "docsify-cli": "^4.4.3"
+  }
+}