Document mouse secondary selection

diff --git a/README_KEYBINDINGS.md b/README_KEYBINDINGS.md
index b7a43218bf552f514853edea6b93b494d8194496..2bf709d0a5214463d9daa2295e7ced7928d72e14 100644 (file)
--- a/README_KEYBINDINGS.md
+++ b/README_KEYBINDINGS.md
@@ -211,6 +211,13 @@ C-x r Space <?>                                 Save point position to register
 C-x r j <?>                                     Jump to point position at register
 ```
 
+# Mouse secondary selection
+```
+Meta-Drag                                       Set selection
+Meta-Right-Click                                Yank secondary
+```
+
+
 # Mode switching
 ```
 C-x C-j                                         Open direx at current file