diff --git a/doc/com.minres.scviewer.doc/src/asciidoc/Overview.adoc b/doc/com.minres.scviewer.doc/src/asciidoc/Overview.adoc
index 10248d4..3599325 100644
--- a/doc/com.minres.scviewer.doc/src/asciidoc/Overview.adoc
+++ b/doc/com.minres.scviewer.doc/src/asciidoc/Overview.adoc
@@ -16,6 +16,7 @@ http://www.accellera.org/activities/committees/systemc-verification.
 === SCViewer features
 
 Features include:
+
 * support of VCD files (compressed and uncompressed)
 ** real numbers
 ** showing vectors and real numbers as analog (step-wise & continuous)
diff --git a/doc/com.minres.scviewer.doc/src/asciidoc/Reference.adoc b/doc/com.minres.scviewer.doc/src/asciidoc/Reference.adoc
index 8867c5b..71beeaf 100644
--- a/doc/com.minres.scviewer.doc/src/asciidoc/Reference.adoc
+++ b/doc/com.minres.scviewer.doc/src/asciidoc/Reference.adoc
@@ -15,25 +15,26 @@ Legend:
 * Mouse Scroll wheel: MScrl
 * Context any means Name List, Value List or Waveform
 
-| Input     | Modifier | Context  | Action                            |
-|-----------|----------|----------|-----------------------------------|
-| LMB klick |          | any      | select                            |
-| LMB klick | Shift    | Waveform | move selected marker to position  |
-| LMB klick | Control  | Waveform | move cursor to position           |
-| LMB drag  |          | Waveform | zoom to range                     |
-| MMB klick |          | Waveform | move selected marker to position  |
-| MScrl     |          | any      | scroll window up/down             |
-| MScrl     | Shift    | any      | scroll window left/right          |
-| Key left  |          | Waveform | scroll window to the left (slow)  |
-| Key right |          | Waveform | scroll window to the right (slow) |
-| Key left  | Shift    | Waveform | scroll window to the left (fast)  |
-| Key right | Shift    | Waveform | scroll window to the right (fast) |
-| Key up    |          | Waveform | move selection up                 |
-| Key down  |          | Waveform | move selection down               |
-| Key up    | Control  | Waveform | move selected track up            |
-| Key down  | Control  | Waveform | move selected track down          |
-| Key +     | Control  | Waveform | zoom in                           |
-| Key -     | Control  | Waveform | zoom out                          |
-| Key Pos1  |          | Waveform | jump to selected marker           |
-| Key End   |          | Waveform | jump to cursor                    |
-| Key Del   |          | any      | delete selected entries           |
+[cols="1,1,1,4",options="header"]
+|===
+| Input     | Modifier | Context  | Action  
+| LMB klick |          | any      | select                            
+| LMB klick | Shift    | Waveform | move selected marker to position  
+| LMB klick | Control  | Waveform | move cursor to position           
+| LMB drag  |          | Waveform | zoom to range                     
+| MMB klick |          | Waveform | move selected marker to position  
+| MScrl     |          | any      | scroll window up/down             
+| MScrl     | Shift    | any      | scroll window left/right          
+| Key left  |          | Waveform | scroll window to the left (slow)  
+| Key right |          | Waveform | scroll window to the right (slow) 
+| Key left  | Shift    | Waveform | scroll window to the left (fast)  
+| Key right | Shift    | Waveform | scroll window to the right (fast) 
+| Key up    |          | Waveform | move selection up                 
+| Key down  |          | Waveform | move selection down               
+| Key up    | Control  | Waveform | move selected track up            
+| Key down  | Control  | Waveform | move selected track down          
+| Key +     | Control  | Waveform | zoom in                           
+| Key -     | Control  | Waveform | zoom out                          
+| Key Pos1  |          | Waveform | jump to selected marker           
+| Key End   |          | Waveform | jump to cursor                    
+| Key Del   |          | any      | delete selected entries