Updates to ch. 3 (again)

006/006 time.csv

@@ -46,3 +46,4 @@ Date,Topic,Minutes
 ,,45
 2025.02.19,ch. 4 writing & bugfixing,60
 2025.02.21,ch. 3 edits,75
+2025.02.22,ch. 3 updates,10

006/include/chap03.tex

@@ -87,7 +87,13 @@ Size is easy to figure out: it just refers to how large a bit of text appears, e
 
 ``Semantic'' formatting means that your code should \textit{mean} something. It other words, you need to distinguish between when you are emphasizing something (i.e., ``This is \textit{very} good cake.'') or merely when you are marking something as italic or bold as a convention, such as book and movie titles or vocabulary words (i.e., \textit{The Grapes of Wrath}, \textit{Star Wars}, ``\textbf{mitosis} is the process of cell division'', etc.). 
 
-In \LaTeX{}, the command for emphasizing text is \verb|\emph{<text>}|. This generally gets rendered as italic text, although not always. For example, the \textsf{beamer} document class renders it as red text, rather than italic text, as this work better in most presentations. (check this)
+In \LaTeX{}, the command for emphasizing text is \verb|\emph{<text>}|. This generally gets rendered as italic text, although not always. If you are working in a document class that formats \verb|\emph{<text>}| in some way other than italic, you can always change it to italic by adding this to your preamble:
+
+\begin{Verbatim}[frame=lines, numbers=left, xleftmargin=5mm, framesep=3mm, breaklines=true, label=\fbox{Redefining emph}]
+\let\emph\relax
+\DeclareTextFontCommand{\emph}{\itseries}
+\end{Verbatim}
+
 
 \section{Commands and Environments}