params: finish sentence in comment (#20291)

params/config.go

@@ -416,7 +416,7 @@ func (c *ChainConfig) CheckCompatible(newcfg *ChainConfig, height uint64) *Confi
 }
 
 // CheckConfigForkOrder checks that we don't "skip" any forks, geth isn't pluggable enough
-// to guarantee that forks
+// to guarantee that forks can be implemented in a different order than on official networks
 func (c *ChainConfig) CheckConfigForkOrder() error {
 	type fork struct {
 		name  string