typo fix

src/mpl_qt_viz/visualizers/_dockPlot/__init__.py

@@ -95,7 +95,7 @@ def saveToPDF(self, filePath: str):  # TODO make this callable from a Qt menubar
         if not filePath.endswith(".pdf"):
             filePath = f"{filePath}.pdf"
         with PdfPages(filePath) as pdf:
-            for k, fig in self.figures:
+            for k, fig in self.figures.items():
                 pdf.savefig(fig)  # saves the current figure into a pdf page
 
             # We can also set the file's metadata via the PdfPages object:
@@ -105,6 +105,7 @@ def saveToPDF(self, filePath: str):  # TODO make this callable from a Qt menubar
             d['CreationDate'] = datetime.datetime.today()
             d['ModDate'] = datetime.datetime.today()
 
+
 class DockablePlot(QDockWidget):
     def __init__(self, figure: plt.Figure, title: str, parent: QWidget = None):
         super().__init__(title, parent=parent)