Update Overview.md

docs/basics/glossary/Overview.md

@@ -49,7 +49,7 @@ You can view others’ profiles to see this information about them.
 
 ## Username
 Subsocial Usernames allow you to use a human-recognizable name on Subsocial instead of a long wallet address. 
-Applications on Subsocial can add support for usernames, allowing you to have custom URLs, for example, https://polkaverse.com/@subsocial.
+Applications on Subsocial can add support for usernames, allowing you to have custom URLs, for example, https://grillapp.net/@subsocial.
 
 ## SUB
 SUB is the ticker for the Subsocial token, which powers the Subsocial blockchain. 
@@ -89,11 +89,6 @@ The tokens could be given governance powers and distributed to members of the Sp
 The tokens could enable a revenue share where ad revenue from the Space is distributed among token holders. 
 These Space tokens will be transferable and tradeable.
 
-## Subnet
-A subnet is a front-end (website/app) built to connect to the Subsocial chain, but it only shows a subsection of content. 
-Polkaverse is a good example. If someday someone makes a front-end similar to Instagram that only shows content with pictures, 
-that would be another good example of a subnet.
-
 ## On-Chain Identity
 Various Substrate blockchains feature on-chain identities, which means that users can make claims about themselves 
 (such as their name, their email address, their Twitter handle, etc.) which can then be independently verified by a third party for a small fee, if they so desire.