Updated README.org

Signed-off-by: TuDatTr <tuan-dat.tran@tudattr.dev>

README.org

@@ -30,6 +30,15 @@ To search for citations using gsearch, you need to provide a search term as a co
 
 #+begin_src shell
 ./gsearch --search_term "machine learning"
+
+@book{zhou2021machine,
+  title={Machine learning},
+  author={Zhou, Zhi-Hua},
+  year={2021},
+  publisher={Springer Nature}
+}
+#+end_src
+
 #+end_src
 
 The above command will search for references related to "machine learning" and display the first reference in BibTeX format.
@@ -37,18 +46,15 @@ The above command will search for references related to "machine learning" and d
 
 gsearch supports the following command-line arguments:
 
-    - ~--search_term~ or ~-s~: The search term to be used for retrieving references. It is a required argument.
+- ~--search_term~ or ~-s~: The search term to be used for retrieving references. It is a required argument.
 
-* Output
-
-gsearch retrieves references using the gscite library and displays the first reference in BibTeX format. The output will be printed to the console.
 * Dependencies
 
 gsearch depends on the following libraries:
 
-    [[https://crates.io/crates/gscite][gscite]]: A Rust library for retrieving citations from Google Scholar.
-    [[https://crates.io/crates/futures_util][futures_util]]: A collection of utility functions and combinators for working with asynchronous Rust.
-    [[https://crates.io/crates/clap][clap]]: A powerful command-line argument parsing library for Rust.
+- [[https://crates.io/crates/gscite][gscite]]: A Rust library for retrieving citations from Google Scholar.
+- [[https://crates.io/crates/futures_util][futures_util]]: A collection of utility functions and combinators for working with asynchronous Rust.
+- [[https://crates.io/crates/clap][clap]]: A powerful command-line argument parsing library for Rust.
 
 * Contributing