fix a couple endpoints

Author: jonas747

endpoints.go

@@ -107,7 +107,7 @@ var (
 	EndpointChannelMessages           = func(cID int64) string { return EndpointChannels + StrID(cID) + "/messages" }
 	EndpointChannelMessage            = func(cID, mID int64) string { return EndpointChannels + StrID(cID) + "/messages/" + StrID(mID) }
 	EndpointChannelMessageAck         = func(cID, mID int64) string { return EndpointChannels + StrID(cID) + "/messages/" + StrID(mID) + "/ack" }
-	EndpointChannelMessagesBulkDelete = func(cID int64) string { return EndpointChannel(cID) + "/messages/bulk_delete" }
+	EndpointChannelMessagesBulkDelete = func(cID int64) string { return EndpointChannel(cID) + "/messages/bulk-delete" }
 	EndpointChannelMessagesPins       = func(cID int64) string { return EndpointChannel(cID) + "/pins" }
 	EndpointChannelMessagePin         = func(cID, mID int64) string { return EndpointChannel(cID) + "/pins/" + StrID(mID) }
 
@@ -138,7 +138,7 @@ var (
 
 	EndpointGuildCreate = EndpointAPI + "guilds"
 
-	EndpointInvite = func(iID string) string { return EndpointAPI + "invite/" + iID }
+	EndpointInvite = func(iID string) string { return EndpointAPI + "invites/" + iID }
 
 	EndpointIntegrationsJoin = func(iID string) string { return EndpointAPI + "integrations/" + iID + "/join" }
 
@@ -309,7 +309,7 @@ func CreateEndpoints(base string) {
 
 	EndpointGuildCreate = EndpointAPI + "guilds"
 
-	EndpointInvite = func(iID string) string { return EndpointAPI + "invite/" + iID }
+	EndpointInvite = func(iID string) string { return EndpointAPI + "invites/" + iID }
 
 	EndpointIntegrationsJoin = func(iID string) string { return EndpointAPI + "integrations/" + iID + "/join" }