Update pop-cli-for-appchains/guides/launch-a-chain/launch-a-known-chain.md

Co-authored-by: Copilot <[email protected]>

Author: Daanvdplas

pop-cli-for-appchains/guides/launch-a-chain/launch-a-known-chain.md

@@ -2,7 +2,7 @@
 
 With Pop CLI you can quickly spin up a supported chain without needing to prepare network configuration files.
 
-A `supported chain` currently refers to one of the system chain. Pop CLI automatically fetches the required binaries and chain-spec generators so you can launch in seconds. Support for additional chains added in the future.
+A `supported chain` currently refers to one of the system chains. Pop CLI automatically fetches the required binaries and chain-spec generators so you can launch in seconds. Support for additional chains will be added in the future.
 
 ### Example Usage