Minor fix in figure caption.

chapters/samples/CP2.6B_revisited/results.tex

@@ -17,7 +17,7 @@
 \begin{figure}[ht!]
 	\centering
 	\input{figures/samples/CP2/CP2.6B_revisited_CPRs.pgf}
-	\caption{Various current-phase relations measured on sample CP2 in a range of \qtyrange{2.8}{3.6}{\kelvin}. The CPRs have been visually offset by \qty{150}{\micro\ampere}. The dashed lines denote zero current.}
+	\caption{Various current-phase relations measured on sample CP2 in a range of \qtyrange{2.8}{3.6}{\kelvin}. The CPRs have been visually offset by \qty{150}{\micro\ampere}. The horizontal dashed lines denote zero current. The lines through the data points are for visual clarity.}
 	\label{fig:CP2.6B_revisited_CPRs}
 \end{figure}