--- a/handouts/amm-ho.tex	Thu Sep 21 16:32:46 2023 +0100
+++ b/handouts/amm-ho.tex	Fri Sep 22 13:48:48 2023 +0100
@@ -17,7 +17,7 @@
 language you like, but I will show you all my code using Scala---I
 hope you have fond memories of Scala from PEP. The only difference
 with PEP is that I will use the current
-stable version of Scala, which at teh time of writing is Scala 3.3.1.
+stable version of Scala, which at the time of writing is Scala 3.3.1.
 
 \begin{tcolorbox}[colback=red!5!white,colframe=red!75!black]
 If you intend to submit your code for the CW in Scala, you \underline{MUST} submit code that
@@ -72,6 +72,8 @@
 \end{lstlisting} %% $  
 
 \noindent
+This creates a file \code{amm} which before it can be run might
+need some adjustments of the permissions. 
 The big advantage of Ammonite is that it comes with some additional
 libraries already built-in and also allows one to easily break up code
 into smaller modules. For example reading and writing files in
@@ -150,17 +152,14 @@
 \noindent Of course this requires that you use \texttt{println} for
 inspecting any data as otherwise nothing will be displayed at the
 commandline.
-\bigskip
+\smallskip
 
 \noindent
 To sum up, Ammonite is a really useful addition to the Scala ecosystem.
 You can find more information about how to use it in the first five chapters
 of the ``Hands-on Scala'' book by Li Haoyi. These chapters are
-free and can be used as a reference, see:
+free and can be used as a reference, see \url{https://www.handsonscala.com/part-i-introduction-to-scala.html}
 
-\begin{center}
-\url{https://www.handsonscala.com/part-i-introduction-to-scala.html}
-\end{center}
 
 \end{document}