Fix wrong substitution of "\centreing"

manuscript/manuscript.tex

@@ -105,7 +105,7 @@ \section{Introduction}
 any change to the integration method.
 
 \begin{figure}
-\centreing
+\centering
 \includegraphics[width=0.6\linewidth]{figures/tesseroid-uieda.pdf}
 \caption{
     A tesseroid (spherical prism) in a geocentric spherical coordinate system, with a
@@ -367,7 +367,7 @@ \subsection{Adaptive Discretization}
 \subsection{Density-based Discretization Algorithm}
 
 \begin{figure*}
-\centreing
+\centering
 \includegraphics[width=\linewidth]
     {figures/density-based-discretization-algorithm.pdf}
 \caption{
@@ -600,7 +600,7 @@ \subsection{Linear Density}
 shell (determined by the thickness).
 
 \begin{figure*}
-\centreing
+\centering
 \includegraphics[width=\linewidth]{figures/linear-D.pdf}
 \caption{
     Differences between the gravitational fields generated by the tesseroid model
@@ -705,7 +705,7 @@ \subsubsection{$D$-$\delta$ space exploration}
 to the exponential case.
 
 \begin{figure}
-\centreing
+\centering
 \includegraphics[width=0.5\linewidth]
     {figures/grid-search.pdf}
 \caption{
@@ -727,7 +727,7 @@ \subsubsection{$D$-$\delta$ space exploration}
 \subsubsection{Delta ratio determination}
 
 \begin{figure*}
-\centreing
+\centering
 \includegraphics[width=\linewidth]{figures/exponential-delta.pdf}
 \caption{
     Numerical error for different exponential density functions and values of the delta
@@ -779,7 +779,7 @@ \section{Application to the Neuqu\'en Basin}
 to 5000m of depth \citep{Howell2005}.
 
 \begin{figure*}
-\centreing
+\centering
 \includegraphics[width=\linewidth]{figures/neuquen-basin.pdf}
 \caption{
     Gravitational effects of the Nequ\'en sedimentary basin modelled
@@ -894,7 +894,7 @@ \section{Analytical Solutions for Spherical Shell}
 \label{sec:shell}
 
 \begin{figure}
-\centreing
+\centering
 \includegraphics[width=0.5\linewidth]{figures/spherical-shell.pdf}
 \caption{
     Spherical shell with inner and outer radii $R_1$ and $R_2$, respectively.