github repo version update

app.py

@@ -23,7 +23,7 @@ def download_nltk():
     nltk.download('stopwords')
 
 def chunkstring(string, length):
-        return (string[0+i:length+i] for i in range(0, len(string), length))
+    return (string[0+i:length+i] for i in range(0, len(string), length))
 
 def pdf_parser(input_pdf):
     pdf = PdfReader(input_pdf)
@@ -378,7 +378,8 @@ def app():
         st.session_state.description = st.markdown('''
         <font color = 'grey'> An all-round teacher. A teaching assistant who really knows the subject. **Anything. Anywhere. All at once.** </font> :100:
         
-        Github Repo: https://github.com/Siyuan-Harry/OmniTutor 
+        Github Repo (for this prototype version): https://github.com/Siyuan-Harry/OmniTutor 
+        - Github Repo (for **OmniTutor 2.0**): https://github.com/Siyuan-Harry/OmniTutor_2
 
         ### ✨ Key features                                           
                                                    
@@ -473,9 +474,7 @@ def app():
         divider.empty()
         
         with col1:
-            #把课程大纲打印出来
             regenerate_outline(st.session_state.course_outline_list)
-            #把课程内容打印出来
             regenerate_content(st.session_state.course_content_list)
 
         with col2: