link fixed

Lecture-Notes/ply-lex.tex

@@ -318,7 +318,7 @@ \section{Scanner States}
 Sometimes, regular expressions are not quite enough and it is beneficial for the scanner to have different
 states.  The following example illustrates this.  We will develop a program that is able to convert an 
 \textsc{Html} file into a pure text file.  This program is actually quite useful: Some years ago I
-had a student that was blind.  If he read a web page, he would use his Braille display.  For him,
+had a student who was blind.  If he read a web page, he would use his Braille display.  For him,
 the \textsc{Html} markup was of no use so if the markup was removed, he could read web pages faster.
 In order to develop the program to remove \textsc{Html} tags, we have to use \blue{scanner states}.
 \index{scanner states}  The idea behind scanner states is that the scanner can use different regular
@@ -329,7 +329,7 @@ \section{Scanner States}
 switching between them.  The following notebook shows how this can be done:
 \\[0.2cm]
 \hspace*{0.3cm}
-\href{https://github.com/karlstroetmann/Formal-Languages/blob/master/Python/Chapter-3/Html2Text.ipynb}{https://github.com/karlstroetmann/Formal-Languages/blob/master/Python/Chapter-3/Html2Text.ipynb}
+\href{https://github.com/karlstroetmann/Formal-Languages/blob/master/Python/Chapter-03/04-Html2Text.ipynb}{https://github.com/karlstroetmann/Formal-Languages/blob/master/Python/Chapter-03/04-Html2Text.ipynb}
 \\
 
 \exerciseEng