meta: adding Italo A. Casas PGP Fingerprint

PR-URL: #11202
Reviewed-By: Evan Lucas <evanlucas@me.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Myles Borins <myles.borins@gmail.com>

Author: Italo A. Casas

README.md

@@ -356,6 +356,8 @@ Node.js releases are signed with one of the following GPG keys:
 `94AE36675C464D64BAFA68DD7434390BDBE9B9C5`
 * **Evan Lucas** <evanlucas@me.com>
 `B9AE9905FFD7803F25714661B63B535A4C206CA9`
+* **Italo A. Casas** <me@italoacasas.com>
+`56730D5401028683275BD23C23EFEFE93C4CFFFE`
 * **James M Snell** <jasnell@keybase.io>
 `71DCFD284A79C3B38668286BC97EC7A07EDE3FC1`
 * **Jeremiah Senkpiel** <fishrock@keybase.io>
@@ -374,6 +376,7 @@ gpg --keyserver pool.sks-keyservers.net --recv-keys 71DCFD284A79C3B38668286BC97E
 gpg --keyserver pool.sks-keyservers.net --recv-keys DD8F2338BAE7501E3DD5AC78C273792F7D83545D
 gpg --keyserver pool.sks-keyservers.net --recv-keys C4F0DFFF4E8C1A8236409D08E73BC641CC11F4C8
 gpg --keyserver pool.sks-keyservers.net --recv-keys B9AE9905FFD7803F25714661B63B535A4C206CA9
+gpg --keyserver pool.sks-keyservers.net --recv-keys 56730D5401028683275BD23C23EFEFE93C4CFFFE
 ```
 
 See the section above on [Verifying Binaries](#verifying-binaries) for details