Update ToDo.md

ToDo.md

@@ -10,6 +10,33 @@ https://docs.streamlit.io/library/advanced-features/app-menu
 
 https://docs.streamlit.io/library/api-reference/widgets/st.file_uploader
 
+
+- https://www.datacamp.com/tutorial/streamlit:
+
+st.title(): This function allows you to add the title of the app. 
+
+st.header(): This function is used to set header of a section. 
+
+st.markdown(): This function is used to set a markdown of a section. 
+
+st.subheader(): This function is used to set sub-header of a section. 
+
+st.caption(): This function is used to write caption. 
+
+st.code(): This function is used to set a code. 
+
+st.latex(): This function is used to display mathematical expressions formatted as LaTeX.
+
+st.title ("this is the app title")
+st.header("this is the header ")
+st.markdown("this is the markdown")
+st.subheader("this is the subheader")
+st.caption("this is the caption")
+st.code("x=2021")
+st.latex(r''' a+a r^1+a r^2+a r^3 ''')
+
+
+
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 https://www.ilovepdf.com/word_to_pdf