Updated Skim document (markdown)

Skim-document.md

@@ -1,22 +1,22 @@
 [SkimToWidget](https://github.com/koreader/koreader/blob/master/frontend/ui/widget/skimtowidget.lua) is a multifunctional book navigation tool. It can be invoked with:
 - reader menu `Navigation` – `Skim document`;
 - `Skim` button in the `Go to page` dialog;
-- a long press on the bottom status bar, if enabled;
+- a long-press on the bottom status bar, if enabled;
 - an assigned gesture.  
 ![SkimToWidget](https://user-images.githubusercontent.com/62179190/111024709-e4404280-83e8-11eb-94d1-9d09659f4f74.png)
 ---
   
 **Top row buttons** actions:  
-<kbd>▕◁</kbd> **press**: go to the previous chapter; **hold**: go to the first page of the book  
-<kbd>◁☆</kbd> **press**: go to the previous bookmark; **hold**: go to the first bookmark  
-<kbd>☆</kbd> **press**: toggle bookmark; **hold**: show the list of bookmarks  
-<kbd>☆▷</kbd> **press**: go to the next bookmark; **hold**: go to the last bookmark  
-<kbd>▷▏</kbd> **press**: go to the next chapter; **hold**: go to the last page of the book  
+<kbd>▕◁</kbd> **press**: go to the previous chapter; **long-press**: go to the first page of the book  
+<kbd>◁☆</kbd> **press**: go to the previous bookmark; **long-press**: go to the first bookmark  
+<kbd>☆</kbd> **press**: toggle bookmark; **long-press**: show the list of bookmarks  
+<kbd>☆▷</kbd> **press**: go to the next bookmark; **long-press**: go to the last bookmark  
+<kbd>▷▏</kbd> **press**: go to the next chapter; **long-press**: go to the last page of the book  
 
 Tap the **progress bar** to go to the desired location in the book.  
 Reader menu `Navigation` - `Settings` – `Progress bars` sets the ToC level for ticks shown in the progress bar.
  
-**Bottom row buttons** actions on press:  
+**Bottom row buttons** actions on tap:  
 <kbd>-10</kbd> go to 10 pages backward  
 <kbd>-1</kbd> go to one page backward  
 <kbd>##</kbd> invoke `Go to page` dialog  
@@ -24,6 +24,6 @@ Reader menu `Navigation` - `Settings` – `Progress bars` sets the ToC level for
 <kbd>+10</kbd> go to 10 pages forward  
  
 SkimToWidget is a [movable element](https://github.com/koreader/koreader/pull/3636).  
-Hold the widget outside of the top row buttons to toggle its transparency.
+Long-press on the widget outside of the top row buttons to toggle its transparency.
 
 Tap the screen outside of the SkimToWidget to close it.