Bump remixd version

package.json

 {
   "name": "remixd",
-  "version": "0.2.3-alpha.0",
+  "version": "0.2.3-alpha.1",
   "description": "remix server: allow accessing file system from remix.ethereum.org and start a dev environment (see help section)",
   "main": "./lib/src/index.js",
   "types": "./lib/src/index.d.ts",