Update README.md

Signed-off-by: nico721GD <117485513+nico721GD@users.noreply.github.com>

README.md

@@ -129,19 +129,24 @@ Your domain (or a subdomain) should point to the server's IP (A and AAAA records
 
 ```bash
 # ensure Git and Docker are installed
-apt-get update
-apt-get install ca-certificates curl git micro
-install -m 0755 -d /etc/apt/keyrings
-curl -fsSL https://download.docker.com/linux/ubuntu/gpg -o /etc/apt/keyrings/docker.asc
-chmod a+r /etc/apt/keyrings/docker.asc
-
-echo \
-  "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.asc] https://download.docker.com/linux/ubuntu \
-  $(. /etc/os-release && echo "$VERSION_CODENAME") stable" | \
-  sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
-
-apt-get update
-apt-get install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin
+sudo apt update
+sudo apt install ca-certificates curl git micro
+sudo install -m 0755 -d /etc/apt/keyrings
+sudo curl -fsSL https://download.docker.com/linux/debian/gpg -o /etc/apt/keyrings/docker.asc
+sudo chmod a+r /etc/apt/keyrings/docker.asc
+
+# Add the repository to Apt sources:
+sudo tee /etc/apt/sources.list.d/docker.sources <<EOF
+Types: deb
+URIs: https://download.docker.com/linux/debian
+Suites: $(. /etc/os-release && echo "$VERSION_CODENAME")
+Components: stable
+Architectures: $(dpkg --print-architecture)
+Signed-By: /etc/apt/keyrings/docker.asc
+EOF
+
+sudo apt update
+sudo apt install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin
 ```
 
 ## Configuration
@@ -372,4 +377,4 @@ Due to an incomplete implementation, Stoat will kick any user that attempts to s
 - (`2025-02-10`) [GHSA-8684-rvfj-v3jq stoatchat/stoatchat: Webhook tokens are freely accessible for users with read permissions.](https://github.com/stoatchat/stoatchat/security/advisories/GHSA-8684-rvfj-v3jq)
 - (`2025-02-10`) [GHSA-h7h6-7pxm-mc66 stoatchat/stoatchat: Nearby message fetch requests can be crafted to fetch entire message history.](https://github.com/stoatchat/stoatchat/security/advisories/GHSA-h7h6-7pxm-mc66)
 - (`2026-05-17`) [GHSA-xhww-5g9p-vvq5 stoatchat/stoatchat: Unauthenticated SSRF in January Proxy and Embed Endpoints.](https://github.com/stoatchat/stoatchat/security/advisories/GHSA-xhww-5g9p-vvq5)
-- (`2026-05-17`) [GHSA-q6j8-cm78-2rrg stoatchat/for-web: Stored XSS via "Trust Poisoning" of Opaque Origins (javascript:) in Link Safety Logic.](https://github.com/stoatchat/for-web/security/advisories/GHSA-q6j8-cm78-2rrg)
+- (`2026-05-17`) [GHSA-q6j8-cm78-2rrg stoatchat/for-web: Stored XSS via "Trust Poisoning" of Opaque Origins (javascript:) in Link Safety Logic.](https://github.com/stoatchat/for-web/security/advisories/GHSA-q6j8-cm78-2rrg)