fix extra bracket and pdf output

documentation.tex

@@ -12,6 +12,7 @@
 \usepackage{fvextra}
 %\usepackage[sorting=none]{biblatex}
 \addbibresource{biblio.bib}
+%%%%%%%
 
 \hypersetup{
     colorlinks=true,
@@ -73,7 +74,7 @@ \section{Setting the environment}
 \item \textbf{biblatex} is a package to easily add references to your project. You do not need to load the package as this class will automatically load it. Visit \href{https://www.overleaf.com/learn/latex/Biblatex_citation_styles}{Biblatex} to see how to use it in more detail. An example of how the references will look can be seen here \cite{einstein,knuthwebsite,dirac,knuth-fa}. Use the \textbf{book, inbook, article, online} biblatex entries to add the references (as I have formatted them to look like how the House Style says). To add the editor in the \textbf{inbook} use the field \textbf{addendum}.
 \item \textbf{graphicx} to easily add figures to the document. Use \verb|\usepackage{graphicx}| to load the package.
 \item \textbf{mhchem} is a must have if you need to add chemical equations. Add it with the command \verb|\usepackage[version=4]{mhchem}| and you can read the documentation explaining how to use it \href{https://ctan.org/pkg/mhchem}{here}.
-\item \textbf{hyperref} will let you add clickable links to websites and customise the look of the links in the document. Use \verb|\href{link}{text}|, \verb|link| is the link to open and \verb|text| is the text shown in the document.}
+\item \textbf{hyperref} will let you add clickable links to websites and customise the look of the links in the document. Use \verb|\href{link}{text}|, \verb|link| is the link to open and \verb|text| is the text shown in the document.
 \end{numlist}
 
 After loading all packages create the document by entering the document environment and create the title on the first page with \verb|\maketitle|. Now start writing down your project!