style: VPN criteria source code better term (#2838)

Signed-off-by: fria <138676274+friadev@users.noreply.github.com>
Signed-off-by: Daniel Gray <dngray@privacyguides.org>

docs/vpn.md

@@ -298,7 +298,7 @@ We require all our recommended VPN providers to provide OpenVPN configuration fi
 - Support for strong protocols such as WireGuard & OpenVPN.
 - Killswitch built in to clients.
 - Multihop support. Multihopping is important to keep data private in case of a single node compromise.
-- If VPN clients are provided, they should be [open source](https://en.wikipedia.org/wiki/Open_source), like the VPN software they generally have built into them. We believe that [source code](https://en.wikipedia.org/wiki/Source_code) availability provides greater transparency about what your device is actually doing.
+- If VPN clients are provided, they should be [open source](https://en.wikipedia.org/wiki/Open_source), like the VPN software they generally have built into them. We believe that [source code](https://en.wikipedia.org/wiki/Source_code) availability provides greater transparency about what the program is actually doing.
 - Censorship resistance features designed to bypass firewalls without DPI.
 
 **Best Case:**