clndash: dont forget CLNDASH_ID

Signed-off-by: William Casarin <jb55@jb55.com>

crates/notedeck_clndash/README.md

@@ -51,6 +51,7 @@ If you’re reading this and still excited — you’re the exact audience.
 2. Set them as environment variables:
 
    ```bash
+   export CLNDASH_ID="03f3c108ccd536b8526841f0a5c58212bb9e6584a1eb493080e7c1cc34f82dad71"
    export CLNDASH_HOST="node.example.com:9735"
    export CLNDASH_RUNE="your_rune_here"
    ```

crates/notedeck_clndash/src/lib.rs

@@ -97,9 +97,9 @@ impl ClnDash {
 
         tokio::spawn(async move {
             let key = SecretKey::new(&mut rand::thread_rng());
-            let their_pubkey = PublicKey::from_str(
-                "03f3c108ccd536b8526841f0a5c58212bb9e6584a1eb493080e7c1cc34f82dad71",
-            )
+            let their_pubkey = PublicKey::from_str(&std::env::var("CLNDASH_ID").unwrap_or(
+                "03f3c108ccd536b8526841f0a5c58212bb9e6584a1eb493080e7c1cc34f82dad71".to_string(),
+            ))
             .unwrap();
 
             let host = std::env::var("CLNDASH_HOST").unwrap_or("ln.damus.io:9735".to_string());