deal with hbox too wide warning when building documentation (#99)

* remophing overfull rule from expl bars

* deal with most overfull boxes

doc/tikzpingus-doc.tex

@@ -216,7 +216,7 @@
 		\ifx\@tmpb\@empty\lpingu{#1#2}\else\lpingu{#1#2 =\ }\texttt{<\textit{\@tmpb}>}\fi\hfill
 				\ifx\@tmp\@empty\else{\@declaredcolor{gray}(}#4{\@declaredcolor{gray})}\fi
 		}
-	}\ifcsname pingu@@lib@#2@\endcsname\index{Libraries!\textit{\csname pingu@@lib@#2@\endcsname}!#2?\hyperref[pk:#1#2]{\protect\lpingu{#2}}}\rlap{~\quad\raisebox{2.75pt}{$\underset{\text{\tiny\smash{\raisebox{3pt}{\textsf{\hyperref[Libraries]{\color{gray}Library}}}}}}{\text{\textit{\footnotesize\strut\csname pingu@@lib@#2@\endcsname}}}$}}\fi\par\endgroup
+	}\ifcsname pingu@@lib@#2@\endcsname\index{Libraries!\textit{\csname pingu@@lib@#2@\endcsname}!#2?\hyperref[pk:#1#2]{\protect\lpingu{#2}}}\rlap{~\quad\raisebox{2.75pt}{$\underset{\text{\tiny\smash{\raisebox{3pt}{\textsf{\hyperref[Libraries]{\color{gray}Library}}}}}}{\text{\textit{\footnotesize\strut\csname pingu@@lib@#2@\endcsname}}}$}}\fi\kern-\linewidth\par\endgroup
 }
 {\endminipage\smallskip\par}
 
@@ -268,7 +268,7 @@
 \tcbset{external/prefix=sub_}
 \tcbEXTERNALIZE % we do not need the other configurationshttps://www.freecodecamp.org/news/deploy-a-react-app-to-github-pages/ in the externalized images :D
 
-\hfuzz=12pt
+\hfuzz=25pt
 
 % this should not happen in the external images
 \AtBeginDocument{%