Made a few wording fixes in the doc and in Qt.

help/en/faq.rst

@@ -39,7 +39,7 @@ You cannot mark the reference (The first file) of a duplicate group. However, wh
 I have a folder from which I really don't want to delete files.
 ------------------------------------------------------------------
 
-If you want to be sure that dupeGuru will never delete file from a particular folder, make sure to set its state to **Reference** at :doc:`directories`.
+If you want to be sure that dupeGuru will never delete file from a particular folder, make sure to set its state to **Reference** at :doc:`folders`.
 
 What is this '(X discarded)' notice in the status bar?
 ------------------------------------------------------

help/en/folders.rst

@@ -1,7 +1,7 @@
 Folder Selection
 ================
 
-The first window you see when you launch dupeGuru is the folder selection window. This windows contains the list of the directories that will be scanned when you click on **Scan**.
+The first window you see when you launch dupeGuru is the folder selection window. This windows contains the list of the folders that will be scanned when you click on **Scan**.
 
 This window is quite straightforward to use. If you want to add a folder, click on the **+** button. If you added folder before, a popup menu with a list of recent folders you added will pop. You can click on one of them to add it directly to your list. If you click on the first item of the popup menu, **Add New Folder...**, you will be prompted for a folder to add. If you never added a folder, no menu will pop and you will directly be prompted for a new folder to add.
 

help/en/results.rst

@@ -54,7 +54,7 @@ Dupes Only and Delta Values
 
 The Dupes Only mode unveil its true power when you use it with the Delta Values switch turned on. When you turn it on, relative values will be displayed instead of absolute ones. So if, for example, you want to remove from your results all duplicates that are more than 300 KB away from their reference, you could sort the dupes only results by Size, select all duplicates under -300 in the Size column, delete them, and then do the same for duplicates over 300 at the bottom of the list.
 
-You could also use it to change the reference priority of your duplicate list. When you make a fresh scan, if there are no reference directories, the reference file of every group is the biggest file. If you want to change that, for example, to the latest modification time, you can sort the dupes only results by modification time in **descending** order, select all duplicates with a modification time delta value higher than 0 and click on **Make Selected Reference**. The reason why you must make the sort order descending is because if 2 files among the same duplicate group are selected when you click on **Make Selected Reference**, only the first of the list will be made reference, the other will be ignored. And since you want the last modified file to be reference, having the sort order descending assures you that the first item of the list will be the last modified.
+You could also use it to change the reference priority of your duplicate list. When you make a fresh scan, if there are no reference folders, the reference file of every group is the biggest file. If you want to change that, for example, to the latest modification time, you can sort the dupes only results by modification time in **descending** order, select all duplicates with a modification time delta value higher than 0 and click on **Make Selected Reference**. The reason why you must make the sort order descending is because if 2 files among the same duplicate group are selected when you click on **Make Selected Reference**, only the first of the list will be made reference, the other will be ignored. And since you want the last modified file to be reference, having the sort order descending assures you that the first item of the list will be the last modified.
 
 Filtering
 ---------

qt/base/result_window.py

@@ -40,8 +40,8 @@ class ResultWindow(QMainWindow):
         ACTIONS = [
             ('actionDetails', 'Ctrl+I', '', "Details", self.detailsTriggered),
             ('actionActions', '', '', "Actions", self.actionsTriggered),
-            ('actionDelta', 'Ctrl+2', '', "Delta Values", self.deltaTriggered),
-            ('actionPowerMarker', 'Ctrl+1', '', "Power Marker", self.powerMarkerTriggered),
+            ('actionPowerMarker', 'Ctrl+1', '', "Show Dupes Only", self.powerMarkerTriggered),
+            ('actionDelta', 'Ctrl+2', '', "Show Delta Values", self.deltaTriggered),
             ('actionDeleteMarked', 'Ctrl+D', '', "Send Marked to Recycle Bin", self.deleteTriggered),
             ('actionHardlinkMarked', 'Ctrl+Shift+D', '', "Delete Marked and Replace with Hardlinks", self.hardlinkTriggered),
             ('actionMoveMarked', 'Ctrl+M', '', "Move Marked to...", self.moveTriggered),