Last chapter added.

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@@ -5,12 +5,12 @@ To be published by MIT Press.
 
 <h2> Download draft PDF </h2>
 
-<a href="https://github.com/udlbook/udlbook/releases/download/v0.6.1/UnderstandingDeepLearning_02_02_23_C.pdf">Draft PDF Chapters 1-19</a><br> 2023-02-02. CC-BY-NC-ND license
+<a href="https://github.com/udlbook/udlbook/releases/download/v0.7.0/UnderstandingDeepLearning_06_02_23_C.pdf">Draft PDF Chapters 1-20</a><br> 2023-02-06. CC-BY-NC-ND license
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 <ul>
-	<li> Chapter 20 and appendices coming soon
+	<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 udlbookmail@gmail.com
 	<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>