space is unneeded in Black Hole Deletion

ch13_the_global_command.md

@@ -387,7 +387,7 @@ console.log("three: ", three);
 Recall from the register chapter that deleted texts are stored inside the numbered registers (granted they are sufficiently large ). Whenever you run `:g/console/d`, Vim stores the deleted lines in the numbered registers. If you delete many lines, you can quickly fill up all the numbered registers. To avoid this, you can always use the black hole register (`"_`) to *not* store your deleted lines into the registers. Run:
 
 ```
-:g/console/d _
+:g/console/d_
 ```
 
 By passing `_` after `d`, Vim won't use up your scratch registers.