doc: fix typo in doc/repl.md line: 6

fix doc/api/repl.md line 6 "includable" => "includible"

Fixes: nodejs/code-and-learn#58
PR-URL: #9582
Reviewed-By: Colin Ihrig <[email protected]>
Reviewed-By: Anna Henningsen <[email protected]>
Reviewed-By: Luigi Pinca <[email protected]>
Reviewed-By: Shigeki Ohtsu <[email protected]>

Author: utano320

doc/api/repl.md

@@ -3,7 +3,7 @@
 > Stability: 2 - Stable
 
 The `repl` module provides a Read-Eval-Print-Loop (REPL) implementation that
-is available both as a standalone program or includable in other applications.
+is available both as a standalone program or includible in other applications.
 It can be accessed using:
 
 ```js