Fix README

README.md

@@ -20,13 +20,13 @@ Usage: <main class> [-h] -c=<pathToCookiesFile> [-d=<pathToDownloadFolder>] [-f=
 
 ```  
 
-### Usage
+## Bandcamp authentication 
 
 This tool does not manage authentication with Bandcamp servers, as they require a valid token from Google Captcha.
 Hence, authentication must first be achieved using Firefox, then Bandcamp cookies must be exported in JSON using the Firefox Addon [Cookie Quick Manager](https://addons.mozilla.org/en-US/firefox/addon/cookie-quick-manager/). 
 This JSON file can then be used using the mandatory parameter `--cookies-file`:
 
-### Usage
+## Usage
 
 Example of command:
 
@@ -38,7 +38,7 @@ This will download all albums ever bought by the Bandcamp account *myBandcampIde
 and extract the music in the folder `~/Music`, 
 The tool always creates one folder per artist, each containing one folder per album (with the format `<year> - <album name>`).
 
-### Compiling
+## Compiling
 
 Compilation is handled by Gradle.
 A task `fatJar` is available to build a standalone executable jar with all dependencies: