Fix typo and add a couple missing commas.

Author: mpetroff

cheatsheets.tex

@@ -770,7 +770,7 @@
 \end{multicols*}
 
 \begin{multicols*}{5}
-  \begin{myboxed}{Axes adjustements\hfill
+  \begin{myboxed}{Axes adjustments\hfill
       \API{https://matplotlib.org/api/_as_gen/matplotlib.pyplot.subplots_adjust.html}}
     plt.\textbf{subplot\_adjust}( … )\\
 

handout-beginner.tex

@@ -225,7 +225,7 @@ \subsection*{\rmfamily Tweak}
 \subsection*{\rmfamily Organize}
 % -----------------------------------------------------------------------------
 
-You can plot several data on the the same figure but you can also
+You can plot several data on the the same figure, but you can also
 split a figure in several subplots (named {\em Axes}): \medskip
 
 % -----------------------------------------------------------------------------

handout-intermediate.tex

@@ -174,7 +174,7 @@ \subsection*{\rmfamily Annotation}
 % -----------------------------------------------------------------------------
 \subsection*{\rmfamily Colors}
 
-Any color can be used but Matplotlib offers sets of colors:\\
+Any color can be used, but Matplotlib offers sets of colors:\\
 \includegraphics[width=\linewidth]{colors-cycle.pdf} \smallskip
 \includegraphics[width=\linewidth]{colors-grey.pdf}\\
 %As well as nice colormaps (viridis an magma):\\

handout-tips.tex

@@ -97,7 +97,7 @@ \subsection*{\rmfamily Transparency}
 
 % -----------------------------------------------------------------------------
 \subsection*{\rmfamily Rasterization}
-If your figure has many graphical elements such as a huge
+If your figure has many graphical elements, such as a huge
 scatter, you can rasterize them to save memory and keep other elements
 in vector format.
 \begin{lstlisting}