doc: remove all-caps shouting from child_process.md

Remove all-caps from child_process.md.

PR-URL: nodejs#26141
Reviewed-By: Vse Mozhet Byt <vsemozhetbyt@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>

doc/api/child_process.md

@@ -674,7 +674,7 @@ See also: [`child_process.exec()`][] and [`child_process.fork()`][].
 ## Synchronous Process Creation
 
 The [`child_process.spawnSync()`][], [`child_process.execSync()`][], and
-[`child_process.execFileSync()`][] methods are **synchronous** and **WILL**
+[`child_process.execFileSync()`][] methods are **synchronous** and **will**
 block the Node.js event loop, pausing execution of any additional code until the
 spawned process exits.