fix: rename function to `with_http_client`

src/imgur/mod.rs

@@ -36,7 +36,7 @@ impl ImgurClient {
     ///
     /// let client = ImgurClient::with_http_client("3e3ce0d7ac14d56", http_client);
     /// ```
-    pub fn new(client_id: &str, http_client: reqwest::Client) -> Self {
+    pub fn with_http_client(client_id: &str, http_client: reqwest::Client) -> Self {
         let client_id = client_id.to_string();
         ImgurClient { client_id, client: http_client }
     }