doc: indicate createSecureContext arg is optional

The `options` argument to `tls.createSecureContext()` is optional. Indicate this by using `[` and `]` in the function signature.
nodejs · Aug 27, 2018 · d92be8e · d92be8e
1 parent 90bc491
commit d92be8e
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/doc/api/tls.md b/doc/api/tls.md
@@ -1005,7 +1005,7 @@ as arguments instead of options.
 A port or host option, if specified, will take precedence over any port or host
 argument.
 
-## tls.createSecureContext(options)
+## tls.createSecureContext([options])
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 added: v0.11.13
 changes: