bug: remove hardcoded api key

src/main.rs

@@ -20,7 +20,7 @@ pub async fn get_bitcoin_price() -> Result<(), Box<dyn std::error::Error>> {
     let url = "https://pro-api.coinmarketcap.com/v1/cryptocurrency/listings/latest";
     let mut h = HeaderMap::new();
     h.insert("content-type", "application/json".parse().unwrap());
-    h.insert("X-CMC_PRO_API_KEY","1bf2b1bb-cc75-4b73-8fea-e0b0e6bce603".parse().unwrap());
+    h.insert("X-CMC_PRO_API_KEY","<API_KEY>".parse().unwrap());
     let mut params = HashMap::new();
     params.insert("symbol", "BTC");
     let res = reqwest::Client::new()