fix

app.js

@@ -23,7 +23,7 @@ app.get('/usage', function (req, res) {
   })
 })
 
-app.get('/book/update', function(req, res){
+app.get('/wiki/update', function(req, res){
 	const WIKI_PATH = '/home/wiki'
 	const commands = [
 		'cd ' + WIKI_PATH,