diff --git a/apps/documenteditor/main/resources/help/en/Contents.json b/apps/documenteditor/main/resources/help/en/Contents.json
index fa7e29337..071d6eb35 100644
--- a/apps/documenteditor/main/resources/help/en/Contents.json
+++ b/apps/documenteditor/main/resources/help/en/Contents.json
@@ -1,10 +1,10 @@
 [
-	{"src": "ProgramInterface/ProgramInterface.htm", "name": "Introducing Document Editor user interface", "headername": "Program Interface"},
-	{"src": "ProgramInterface/FileTab.htm", "name": "File tab"},
-	{"src": "ProgramInterface/HomeTab.htm", "name": "Home Tab"},
-	{"src": "ProgramInterface/InsertTab.htm", "name": "Insert tab"},
-	{"src": "ProgramInterface/LayoutTab.htm", "name": "Layout tab"},
-	{"src": "ProgramInterface/ReviewTab.htm", "name": "Review tab"},
+    {"src": "ProgramInterface/ProgramInterface.htm", "name": "Introducing Document Editor user interface", "headername": "Program Interface"},
+    {"src": "ProgramInterface/FileTab.htm", "name": "File tab"},
+    {"src": "ProgramInterface/HomeTab.htm", "name": "Home Tab"},
+    {"src": "ProgramInterface/InsertTab.htm", "name": "Insert tab"},
+    {"src": "ProgramInterface/LayoutTab.htm", "name": "Layout tab"},
+    {"src": "ProgramInterface/ReviewTab.htm", "name": "Review tab"},
     {"src": "ProgramInterface/PluginsTab.htm", "name": "Plugins tab"},
     {"src": "UsageInstructions/ChangeColorScheme.htm", "name": "Change color scheme", "headername": "Basic operations"},
     {"src": "UsageInstructions/CopyPasteUndoRedo.htm", "name": "Copy/paste text passages, undo/redo your actions"},
@@ -15,38 +15,38 @@
     {"src": "UsageInstructions/InsertHeadersFooters.htm", "name": "Insert headers and footers"},
     {"src": "UsageInstructions/InsertPageNumbers.htm", "name": "Insert page numbers"},
     {"src": "UsageInstructions/InsertFootnotes.htm", "name": "Insert footnotes"},
-	{"src": "UsageInstructions/AlignText.htm", "name": "Align your text in a paragraph", "headername": "Paragraph formatting"},
-	{"src": "UsageInstructions/BackgroundColor.htm", "name": "Select background color for a paragraph"},
-	{"src": "UsageInstructions/ParagraphIndents.htm", "name": "Change paragraph indents"},
-	{"src": "UsageInstructions/LineSpacing.htm", "name": "Set paragraph line spacing"},
-	{"src": "UsageInstructions/PageBreaks.htm", "name": "Insert page breaks"},
+    {"src": "UsageInstructions/AlignText.htm", "name": "Align your text in a paragraph", "headername": "Paragraph formatting"},
+    {"src": "UsageInstructions/BackgroundColor.htm", "name": "Select background color for a paragraph"},
+    {"src": "UsageInstructions/ParagraphIndents.htm", "name": "Change paragraph indents"},
+    {"src": "UsageInstructions/LineSpacing.htm", "name": "Set paragraph line spacing"},
+    {"src": "UsageInstructions/PageBreaks.htm", "name": "Insert page breaks"},
     {"src": "UsageInstructions/AddBorders.htm", "name": "Add borders"},
     {"src": "UsageInstructions/SetTabStops.htm", "name": "Set tab stops"},
-	{"src": "UsageInstructions/CreateLists.htm", "name": "Create lists"},
+    {"src": "UsageInstructions/CreateLists.htm", "name": "Create lists"},
     {"src": "UsageInstructions/FormattingPresets.htm", "name": "Apply formatting styles", "headername": "Text formatting"},
-	{"src": "UsageInstructions/FontTypeSizeColor.htm", "name": "Set font type, size, and color"},
-	{"src": "UsageInstructions/DecorationStyles.htm", "name": "Apply font decoration styles"},
+    {"src": "UsageInstructions/FontTypeSizeColor.htm", "name": "Set font type, size, and color"},
+    {"src": "UsageInstructions/DecorationStyles.htm", "name": "Apply font decoration styles"},
     {"src": "UsageInstructions/CopyClearFormatting.htm", "name": "Copy/clear text formatting" },
     {"src": "UsageInstructions/AddHyperlinks.htm", "name": "Add hyperlinks"},
-	{"src": "UsageInstructions/InsertDropCap.htm", "name": "Insert a drop cap"},	
-	{"src": "UsageInstructions/InsertTables.htm", "name": "Insert tables", "headername": "Operations on objects"},
-	{"src": "UsageInstructions/InsertImages.htm", "name": "Insert images"},
-	{"src": "UsageInstructions/InsertAutoshapes.htm", "name": "Insert autoshapes"},
+    {"src": "UsageInstructions/InsertDropCap.htm", "name": "Insert a drop cap"},
+    {"src": "UsageInstructions/InsertTables.htm", "name": "Insert tables", "headername": "Operations on objects"},
+    {"src": "UsageInstructions/InsertImages.htm", "name": "Insert images"},
+    {"src": "UsageInstructions/InsertAutoshapes.htm", "name": "Insert autoshapes"},
     {"src": "UsageInstructions/InsertCharts.htm", "name": "Insert charts" },
     {"src": "UsageInstructions/InsertTextObjects.htm", "name": "Insert text objects" },
     {"src": "UsageInstructions/AlignArrangeObjects.htm", "name": "Align and arrange objects on a page" },
-    {"src": "UsageInstructions/ChangeWrappingStyle.htm", "name": "Change wrapping style" },        
+    {"src": "UsageInstructions/ChangeWrappingStyle.htm", "name": "Change wrapping style" },
     {"src": "UsageInstructions/UseMailMerge.htm", "name": "Use mail merge", "headername": "Mail Merge"},
     {"src": "UsageInstructions/InsertEquation.htm", "name": "Insert equations", "headername": "Math equations"},
     {"src": "HelpfulHints/CollaborativeEditing.htm", "name": "Collaborative document editing", "headername": "Document co-editing"},
-	{"src": "HelpfulHints/Review.htm", "name": "Document Review"},    
-	{"src": "UsageInstructions/ViewDocInfo.htm", "name": "View document information", "headername": "Document co-editing"},
+    {"src": "HelpfulHints/Review.htm", "name": "Document Review"},
+    {"src": "UsageInstructions/ViewDocInfo.htm", "name": "View document information", "headername": "Tools and settings"},
     {"src": "UsageInstructions/SavePrintDownload.htm", "name": "Save/download/print your document" },
     {"src": "HelpfulHints/AdvancedSettings.htm", "name": "Advanced settings of Document Editor"},
-	{"src": "HelpfulHints/Navigation.htm", "name": "View settings and navigation tools"},
-	{"src": "HelpfulHints/Search.htm", "name": "Search and replace function"},	
-	{"src": "HelpfulHints/SpellChecking.htm", "name": "Spell-checking"},	
-	{"src": "HelpfulHints/About.htm", "name": "About Document Editor", "headername": "Helpful hints"},
+    {"src": "HelpfulHints/Navigation.htm", "name": "View settings and navigation tools"},
+    {"src": "HelpfulHints/Search.htm", "name": "Search and replace function"},
+    {"src": "HelpfulHints/SpellChecking.htm", "name": "Spell-checking"},
+    {"src": "HelpfulHints/About.htm", "name": "About Document Editor", "headername": "Helpful hints"},
     {"src": "HelpfulHints/SupportedFormats.htm", "name": "Supported formats of electronic documents" },
-    {"src": "HelpfulHints/KeyboardShortcuts.htm", "name": "Keyboard shortcuts"}		
+    {"src": "HelpfulHints/KeyboardShortcuts.htm", "name": "Keyboard shortcuts"}
 ]
\ No newline at end of file