message: Fix a typo in the html report.
diff: <section class="explanation">
  <h4>Understanding this report:</h4>
  <p>The plot on the left displays the average time per iteration for this benchmark. The shaded region
  - shows the estimated probabilty of an iteration taking a certain amount of time, while the line
  + shows the estimated probability of an iteration taking a certain amount of time, while the line
  shows the mean. Click on the plot for a larger view showing the outliers.</p>
  {{- if slope }}
  <p>The plot on the right shows the linear regression calculated from the measurements. Each point
  