Update README.md

add leading dot to local image files

to make it work on windows

README.md

@@ -5,17 +5,17 @@ You can send video or audio files to the app.
 Channel layout inside video can be mono or stereo. But mono files will temporarily merge to a stereo file at first.
 If number of mono tracks is uneven it will return an error.
 
-Send a file to R128. 
+Send a file to R128.
 (If opening with double click you get a file select window.)
 If there are more then one stereo or two mono tracks you get a popup to choose the tracks.
 
-![select tracks](/images/select_tracks.png)
+![select tracks](./images/select_tracks.png)
 
 The choosen tracks are first extracted to `%temp%` as `output.wav` in 24bit and 48kHz.
 Progress is shown in the gui.
 Then it measures this wave file. If ready you can copy the result to the clipboard.
 
-![GUI](/images/gui.png)
+![GUI](./images/gui.png)
 
 `Output.wav` will stay at `%temp%` until overridden.
 So you can use the app as an audio extractor or audio converter too.