Readme updated

.gitignore

@@ -1,2 +1,3 @@
 node_modules/
-.idea
+.idea
+package-lock.json

README.md

@@ -21,3 +21,22 @@ Or
 We can run node-file-manager in terminal directly. We can specify prot add data root dir by `-p` and `-d`, default with 5000 and scripts directory.
 
 Then, we can view localhost:8080/ in our browr.
+
+# HTTP Basic Auth
+The app is protected with simple http basic auth, so it's recommended to use it just over TLS (HTTPS). Let's Encrypt is your friend. ;)
+
+## Setup
+If you use linux you can simply use `htpasswd` comming with `apache2-utils` (on Debian/Ubuntu)
+
+On Debian/Ubuntu do:
+```bash
+sudo apt-get update
+sudo apt-get -y install apache2-utils
+```
+
+## Add User
+The following command creates a new `htpasswd` file in the current folder with the user `peter`. After creating a new file copy it into the `lib` dir of the app or append the content of the new file to the existing one.
+```bash
+htpasswd -c ./htpasswd peter
+cp ./htpasswd node-file-manager/lib
+```