update readme.md for reajs

explain where reajs loads jsfx better

README.md

@@ -7,11 +7,17 @@ It can isolate or attenuate the vocals (center panned audio) in a mix, and as su
 ### Reaper
 Reaper supports JSFX natively, just copy vocalrediso.jsfx to `%AppData%\REAPER\Effects` (In a subfolder if preferred)
 
-### VST compatible DAW
+### VST compatible DAW (Instructions for windows)
 JSFX can usually be run in a vst through [ReaPlugs by Cocos](https://www.reaper.fm/reaplugs/).  
 Download and install ReaPlugs, and pay attention to where it installs.  
-After it installs, copy vocalrediso.jsfx to somewhere in `...\ReaPlugs\JS` at the install location  
-(My install is located at `C:\Program Files\VSTPlugins\ReaPlugs\JS`)
+If you have Reaper installed, ReaPlugs should detect that `%AppData%\REAPER` exists and use that to load JSFX from %AppData%\REAPER\Effects instead of the local copy.
+Otherwise, ReaPlugs will load effects from `...\ReaPlugs\JS` at the install location  
+(My install is located at `C:\Program Files\VSTPlugins\ReaPlugs\JS`). If you want override the location to store JSFX, you should include a file called reajs.ini in the install folder for ReaPlugs, with the following contents:
+
+    [ReaJS]
+    rootpath=\path\to\custom\folder\JS
+
+where \path\to\custom\folder\JS is the path to the JS folder that contains the ColorThemes, Data, Effects and presets folders that you would like ReaJs to use. (For example I run Equalizer APO and when reaper is installed, the audio service tries to load plugins from %AppData%\REAPER\Effects but is denied because of permissions)
 
 
 ## Using the effect: