Update index.html

index.html

@@ -12,7 +12,6 @@ <h2> Download draft PDF </h2>
  <img src="https://img.shields.io/github/downloads/udlbook/udlbook/total" alt="download stats shield">
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 <ul>
-	<li> Appendices and notebooks coming soon
 	<li> Report errata via <a href="https://github.com/udlbook/udlbook/issues">github</a> or contact me directly at [email protected]
 	<li> Follow me on <a href="https://twitter.com/SimonPrinceAI">Twitter</a> or <a href="https://www.linkedin.com/in/simon-prince-615bb9165/">LinkedIn</a> for updates.
 </ul>
@@ -79,7 +78,7 @@ <h2>Resources for instructors </h2>
 <h2>Resources for students</h2>
 
 <p>Answers to selected questions: <a href="https://github.com/udlbook/udlbook/raw/main/UDL_Answer_Booklet_Students.pdf">PDF</a></p>
-<p>Python notebooks:</p>
+<p>Python notebooks: (Early ones more thoroughly tested than later ones!)</p>
 
 <ul> 
 	<li> Notebook 1.1 - Background mathematics: <a href="https://github.com/udlbook/udlbook/blob/main/Notebooks/Chap01/1_1_BackgroundMathematics.ipynb">ipynb/colab</a>