Fix build

paper/rotohsm_paper.tex

@@ -690,7 +690,7 @@ fly, without stopping the rotor.
 
 \begin{figure}
     \center
-    \includegraphics[width=0.7\textwidth]{../../prototype/sensor-analysis/fig-acc-theory-meas-run50.pdf}
+    \includegraphics[width=0.7\textwidth]{../prototype/sensor-analysis/fig-acc-theory-meas-run50.pdf}
     \caption{Centrifugal acceleration versus angular frequency in theory and in our experiments. Experimental
     measurements are shown after correction for device-specific offset and scale error. Our measurements
     showed good agreement with our theoretical results. Above \SI{300}{rpm}, the relative acceleration error was consistently
@@ -702,7 +702,7 @@ fly, without stopping the rotor.
 \begin{figure}
     \begin{subfigure}{0.5\textwidth}
         \center
-        \includegraphics[width=1.1\textwidth]{../../prototype/sensor-analysis/fig-acc-trace-steps-run50.pdf}
+        \includegraphics[width=1.1\textwidth]{../prototype/sensor-analysis/fig-acc-trace-steps-run50.pdf}
         \caption{Raw recording of accelerometer measurements during one experiment run. Shaded areas indicate time
         intervals when we manually adjusted speed.}
         \label{fig-acc-steps}
@@ -710,7 +710,7 @@ fly, without stopping the rotor.
     \hfill
     \begin{subfigure}{0.45\textwidth}
         \center
-        \includegraphics[width=1.1\textwidth]{../../prototype/sensor-analysis/fig-acc-trace-stacked-run50.pdf}
+        \includegraphics[width=1.1\textwidth]{../prototype/sensor-analysis/fig-acc-trace-stacked-run50.pdf}
         \caption{Valid measurements cropped out from \ref{fig-acc-steps} for various frequencies. Intermodulation
         artifacts from the accelerometer's $\SI{10}{\hertz}$ sampling frequency and the $\SI{3}{\hertz}$ to
         $\SI{18}{\hertz}$ rotation frequency due to gravity and device vibration are clearly visible.}