Update notable.md - Fix typos

This fixes just a few typos so everything is in the same style.

docs/guide/plugins/notable.md

@@ -4,26 +4,26 @@
 
 - The [QuickSnapshot plugin](https://github.com/xournalpp/xournalpp/tree/master/plugins/QuickScreenshot)
 uses an external screenshot tool, to quickly take a screen snapshot of a region of the screen and either put
-it on the clipboard or save it into a user specified file
+it on the clipboard or save it into a user specified file.
 - The [ToggleGrid plugin](https://github.com/xournalpp/xournalpp/tree/master/plugins/ToggleGrid)
 provides a shortcut for toggling between "grid background with snapping to grid" and
-"plain background without snapping to grid"
+"plain background without snapping to grid".
 - The [ColorCycle plugin](https://github.com/xournalpp/xournalpp/tree/master/plugins/ColorCycle)
-lets you cycle through a list of colors for the current tool by using the same accelerator repeatedly
+lets you cycle through a list of colors for the current tool by using the same accelerator repeatedly.
 - The [LayerActions plugin](https://github.com/xournalpp/xournalpp/tree/master/plugins/LayerActions)
 provides shortcuts for cloning non-background layers to the next page, hiding all non-background layers
 except the footer layers and adding a new top layer on each page.
 - The [MigrateFontSizes plugin](https://github.com/xournalpp/xournalpp/tree/master/plugins/MigrateFontSizes)
 allows to scale font sizes across the document, both via the GUI and directly from the menu.
 - The [HighlightPosition plugin](https://github.com/xournalpp/xournalpp/tree/master/plugins/HighlightPosition)
-adds a shortcut for highlighting the current position
+adds a shortcut for highlighting the current position.
 - The [Export plugin](https://github.com/xournalpp/xournalpp/tree/master/plugins/Export)
-lets the user export the current document to pdf, svg or png-format via a shortcut
+lets the user export the current document to pdf, svg or png-format via a shortcut.
 
 ## Work in Progress
 
 - The [HandwritingRecognition plugin](https://github.com/xournalpp/xournalpp/pull/2176) uses cloud-based
-handwriting recogntion to recognize handwritten text from a selection or page layer in a user-specified language.
+handwriting recognition to recognize handwritten text from a selection or page layer in a user-specified language.
 - The [FunctionPlotter plugin](https://github.com/xournalpp/xournalpp/pull/3811) allows plotting graphs of
 ordinary functions and parametric functions.
 - The [Notability plugin](https://github.com/xournalpp/xournalpp/pull/3830) allows importing notes from a
@@ -32,10 +32,10 @@ Notability `.note` file.
 ## Notable Third Party Plugins
 
 - The [ImageTranscription plugin](https://github.com/WillNilges/inkpath/) allows to convert an image to
-Xournal++ strokes
+Xournal++ strokes.
 - The [Xournalpp_FlyPie plugin](https://github.com/baf57/Xournalpp_FlyPie) connects a hierarchic radial menu called
-[Fly-Pie](https://github.com/Schneegans/Fly-Pie) to Xournal++ shortcuts
+[Fly-Pie](https://github.com/Schneegans/Fly-Pie) to Xournal++ shortcuts.
 - The [vi-xournalpp plugin](https://github.com/raw-bacon/vi-xournalpp) which allows for vi-style navigation
-between tools in Xournal++
+between tools in Xournal++.
 
 If you build an interesting plugin that you would like to share, feel free to submit your PR!