Correcting the documentation

doc/introduction-to-mongo.tex

@@ -85,7 +85,7 @@ The commands that are given in this document have been tested with MongoDB serve
 
 \item Clone the repository that contains the exercises by typing the command that is given in Listing~\ref{listing:git-clone} on one line.
 
-\begin{lstlisting}[caption={Cloning the OpenSearch exercises.},label=listing:git-clone,numbers=none,language=Bash,showspaces=true]
+\begin{lstlisting}[caption={Cloning the exercises.},label=listing:git-clone,numbers=none,language=Bash,showspaces=true]
 git clone https://gitlab.cis.strath.ac.uk/gxb20157/introduction-to-mongodb.git
 \end{lstlisting}
 \end{itemize}