docs: update vimdocs

Author: soifou

doc/blink-cmp.txt

@@ -1,4 +1,4 @@
-*blink-cmp.txt*          For NVIM v0.10.0          Last change: 2025 August 12
+*blink-cmp.txt*          For NVIM v0.10.0          Last change: 2025 August 14
 
 ==============================================================================
 Table of Contents                                *blink-cmp-table-of-contents*
@@ -1592,7 +1592,7 @@ DEFAULT
 >lua
     ['<C-space>'] = { 'show', 'show_documentation', 'hide_documentation' },
     ['<C-e>'] = { 'hide', 'fallback' },
-    ['<C-y>'] = { 'select_and_accept' },
+    ['<C-y>'] = { 'select_and_accept', 'fallback' },
 
     ['<Up>'] = { 'select_prev', 'fallback' },
     ['<Down>'] = { 'select_next', 'fallback' },
@@ -2854,7 +2854,7 @@ for more information on defining your own.
       ['<Right>'] = { 'select_next', 'fallback' },
       ['<Left>'] = { 'select_prev', 'fallback' },
 
-      ['<C-y>'] = { 'select_and_accept' },
+      ['<C-y>'] = { 'select_and_accept', 'fallback' },
       ['<C-e>'] = { 'cancel', 'fallback' },
     }
 <