diff --git a/README.md b/README.md
index 49d5a9a..5ab9e01 100644
--- a/README.md
+++ b/README.md
@@ -4,9 +4,9 @@ This app uses a local instance of Searx.ng to get Google (Startpage) results and
 
 ## Usage
 
-to run just run 
+to deploy, just run 
 
 ```
 cd app/
-make run
+make rebuild
 ```
\ No newline at end of file
diff --git a/TODO b/TODO
index f6f3cb5..e69de29 100644
--- a/TODO
+++ b/TODO
@@ -1 +0,0 @@
-TODO: add documentation
\ No newline at end of file
diff --git a/app/src/app.js b/app/src/app.js
index e30b054..7da3886 100644
--- a/app/src/app.js
+++ b/app/src/app.js
@@ -7,6 +7,7 @@ const app = express();
 // specifying the folder with the static content - html+css
 app.use(express.static(__dirname + '/static'));
 
+// root route, serving the czech version by default
 app.get('/', (req, res) => {
     res.sendFile(path.join(__dirname, '/static/cs/index.html'));
 });
@@ -15,6 +16,7 @@ app.get('/en', (req, res) => {
     res.sendFile(path.join(__dirname, '/static/en/index.html'));
 });
 
+// the search route serves the czech language by default
 app.get('/search', (req, res) => {
     handleSearch(req, res, "cz-CS");
 });
diff --git a/app/src/search.js b/app/src/search.js
index e18e936..354d31b 100644
--- a/app/src/search.js
+++ b/app/src/search.js
@@ -20,7 +20,7 @@ async function handleSearch(req, res, lang) {
             q: query,
             engines: "startpage",
             format: "json",
-            category_general: 1,
+            category_general: 1, // this is needed for an accurate language choice by searx.ng
             language: lang
         }); 
         console.log(`${searxngUrl}/search?${params}`);