Added commit # to server api.

_reference/test api setup.md

@@ -22,7 +22,7 @@ hooks.js:
 module.exports = [
   {
     path: "/pull",
-    command: "git pull && npm i",
+    command: "git pull && yarn && pm2 restart 0",
     cwd: "/home/ubuntu/io/",
     method: "post",
   },

server.js

@@ -34,7 +34,11 @@ app.post("/sendemail", fb.validateFirebaseIdToken, sendEmail.sendEmail);
 //Test route to ensure Express is responding.
 app.get("/test", async function (req, res) {
   console.log("Incoming request verified.", req);
-  res.status(200).send("OK");
+  const Commit = require("child_process").execSync(
+    "git rev-parse --short HEAD"
+  );
+
+  res.status(200).send(`OK - ${Commit}`);
 });
 const test = require("./server/_test/test.js");
 app.post("/test", test.testResponse);