docs(readme): add specific window manager

Author: Arsemy

README.md

@@ -1,10 +1,10 @@
 <p>For more information, see the specific setup's page</p>
 <details>
-  <summary><b>🎁 Lupine's setup</b></summary>
+  <summary><b>🎁 Lupine's setup (DWL)</b></summary>
   <img src="/lupine/docs/assets/setup/setup.png" alt="setup">
 </details>
 <p></p>
 <details>
-  <summary><b>🎁 Iris's setup</b></summary>
+  <summary><b>🎁 Iris's setup (BSPWM)</b></summary>
   <img src="/iris/docs/assets/setup/setup.png" alt="setup">
 </details>