add instructions for downstream Debians

i2p2www/pages/downloads/debian.html

@@ -111,11 +111,27 @@ user to root with <code>su</code> or by prefixing each command with <code>sudo</
   | sudo tee /etc/apt/sources.list.d/i2p.list
     </code>
     </pre>
-    if you are using Debian Buster or older distributons, use the following command instead:
+    {% trans -%}If you're using a downstream variant of Debian like LMDE or Kali Linux, the following command fill find the correct version for your distribution:{%- endtrans %}
+    <pre>
+    <code>
+    # Use this command on Debian Bullseye or newer only.
+  echo "deb [signed-by=/usr/share/keyrings/i2p-archive-keyring.gpg] https://deb.i2p2.de/ $(dpkg --status tzdata | grep Provides | cut -f2 -d'-') main" \
+  | sudo tee /etc/apt/sources.list.d/i2p.list
+    </code>
+    </pre>
+    {% trans -%}If you are using Debian Buster or older official Debian distributons, use the following command instead:{%- endtrans %}
     <pre>
     <code>
     # Use this command on Debian Buster or older only.
   echo "deb https://deb.i2p2.de/ $(lsb_release -sc) main" \
+  | sudo tee /etc/apt/sources.list.d/i2p.list
+    </code>
+    </pre>
+    {% trans -%}If you're using a downstream variant of Debian like LMDE or Kali Linux, the following command fill find the correct version for your distribution:{%- endtrans %}
+    <pre>
+    <code>
+    # Use this command on Debian Buster or older only.
+  echo "deb https://deb.i2p2.de/ $(dpkg --status tzdata | grep Provides | cut -f2 -d'-') main" \
   | sudo tee /etc/apt/sources.list.d/i2p.list
     </code>
     </pre>