Update doc/api/process.md

Co-authored-by: Antoine du Hamel <[email protected]>

Author: marco-ippolito

doc/api/process.md

@@ -1973,7 +1973,7 @@ A boolean value that is `true` if the current Node.js build includes support for
 ## `process.features.tls_sni`
 
 <!-- YAML
-added: REPLACEME
+added: v0.5.3
 -->
 
 * {boolean}