small fixes

app.py

@@ -96,10 +96,14 @@ description = """
 This space shows how to do automatic speech recognition with Next-gen Kaldi.
 
 See more information by visiting the following links:
-    - https://github.com/k2-fsa/icefall
-    - https://github.com/k2-fsa/sherpa
-    - https://github.com/k2-fsa/k2
-    - https://github.com/lhotse-speech/lhotse
+
+- <https://github.com/k2-fsa/icefall>
+
+- <https://github.com/k2-fsa/sherpa>
+
+- <https://github.com/k2-fsa/k2>
+
+- <https://github.com/lhotse-speech/lhotse>
 """
 
 with demo: