Improve labelling for plot_quality() (#119)

* improve labelling for `plot_quality()`

* update test plot: this is an improvement

* Update snapshot

The code generating this figure changed, but the new snapshot was not uploaded

* Sync docs

---------

Co-authored-by: Pablo Rodríguez Sánchez <[email protected]>

Author: mdingemanse

R/plots.R

@@ -36,15 +36,15 @@ plot_quality <- function(data, source = "all", saveplot = FALSE){
   plot_duration_transition <- plot_scatter(timing,
                                            colname_x = "transition_time",
                                            colname_y = "turn_duration",
-                                           title = "",
+                                           title = source,
                                            xlab = "transition (ms)",
                                            ylab = "turn duration (ms)")
 
   panel <- cowplot::plot_grid(
     plot_duration,
     plot_transition,
     plot_duration_transition,
-    labels = c("", "", source),
+    labels = c("A", "B","C"),
     hjust = 0,
     nrow=1
   )