Update Hazy cover image credits

docs/latex/QuickStart/QuickStart.tex

@@ -44,13 +44,11 @@
 \vspace{5mm}
 \noindent
 {\small
-{\em Cover image:} Bavarian Road Cycling Championship 2017,
-  in Baiersdorf (Middle Franconia).
-  Photo by
-  \href{https://unsplash.com/@markusspiske?utm_source=unsplash&utm_medium=referral&utm_content=creditCopyText}
-  {Markus Spiske} on
-  \href{https://unsplash.com/license?utm_source=unsplash&utm_medium=referral&utm_content=creditCopyText}
-  {Unsplash}.
+{\em Cover image:}
+Bavarian Road Cycling Championship 2017, in Baiersdorf (Middle Franconia).
+Photo by
+\href{https://unsplash.com/@markusspiske}{Markus Spiske} on
+\href{https://unsplash.com/license}{Unsplash}.
 \clearpage
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

docs/latex/hazy1/hazy1.tex

@@ -62,10 +62,12 @@ Hazy\\
 \vspace{5mm}
 \noindent
 {\small
-{\em Cover image:
+{\em Cover image:}
 The dawn of a new day, representing Cloudy's migration between
-development platforms and new development plans. Photo by Federico Respini on Unsplash.
-}
+development platforms and new development plans.
+Photo by
+\href{https://unsplash.com/@federicorespini}{Federico Respini} on
+\href{https://unsplash.com/license}{Unsplash}.
 }
 \clearpage
 

docs/latex/hazy2/hazy2.tex

@@ -63,7 +63,7 @@ and test suite
 {\small
 {\em Cover image:}
 Continuum opacities plotted as a function of wavelength for a cloud with
-$N_H = 10^{23} \, \rm{cm}^{−2}$.
+$\rm{N_H} = 10^{23} \, \rm{cm}^{−2}$.
 Figure 1 from \citet{Chakraborty2022}.
 }
 \clearpage