gopls/doc: fix typo in settings

Change-Id: Ia504ebccae77db5533c8a29a455f074068db78b4
Reviewed-on: https://go-review.googlesource.com/c/tools/+/196663
Reviewed-by: Ian Cottrell <iancottrell@google.com>
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
diff --git a/gopls/doc/vscode.md b/gopls/doc/vscode.md
index 83526aa..dd2be6a 100644
--- a/gopls/doc/vscode.md
+++ b/gopls/doc/vscode.md
@@ -14,10 +14,10 @@
 "gopls": {
     "usePlaceholders": true, // add parameter placeholders when completing a function
 
-    // ----- Experimental settings -----
+    // Experimental settings
     "completeUnimported": true, // autocomplete unimported packages
-    "watchChangedFiles": true, // watch file changes outside of the editor
-    "deepComplete": true, // deep completion
+    "watchChangedFiles": true,  // watch file changes outside of the editor
+    "deepCompletion": true,     // enable deep completion
 },
 "files.eol": "\n", // formatting only supports LF line endings
 ```