Add `--in-source-map inline` documentation (#1611)

diff --git a/README.md b/README.md
index a33e0b3..396f9a9 100644 (file)
--- a/README.md
+++ b/README.md
@@ -68,7 +68,8 @@ The available options are:
   --source-map-inline           Write base64-encoded source map to the end of js output.
   --in-source-map               Input source map, useful if you're compressing
                                 JS that was generated from some other original
-                                code.
+                                code. Specify "inline" if the source map is included
+                                inline with the sources.
   --screw-ie8                   Use this flag if you don't wish to support
                                 Internet Explorer 6/7/8.
                                 By default UglifyJS will not try to be IE-proof.
@@ -200,9 +201,10 @@ compressed JS by mapping every token in the compiled JS to its original
 location.
 
 To use this feature you need to pass `--in-source-map
-/path/to/input/source.map`.  Normally the input source map should also point
-to the file containing the generated JS, so if that's correct you can omit
-input files from the command line.
+/path/to/input/source.map` or `--in-source-map inline` if the source map is
+included inline with the sources. Normally the input source map should also
+point to the file containing the generated JS, so if that's correct you can
+omit input files from the command line.
 
 ## Mangler options