Improved comments around versioning so I don't lose track

src/grf.pnml

@@ -3,8 +3,12 @@ grf {
 	grfid: "brv2"; // BRTrains v2, based on BRTrains, BROS, and the Modern UK Trains set (addon to BRTrains)
 	name: string(STR_GRF_NAME);
 	desc: string(STR_GRF_DESC);
-	version: 28; // Remove the decimal from the "real" version, eg v2.8 becomes 28
-	min_compatible_version: 1; //bump up this number to whatever the current version is when breaking compatibility
+	// Remove the 2.9 from the "real" version, eg v2.8 becomes 9
+	// 8 (2.8) released BaNaNaS 2024-04-02T07:25:04
+	version: 9;
+	//bump up this number to whatever the "next release" version is when breaking compatibility.
+	// Eg if 8 (2.8) has released and the next version is 9 (2.9) then set it to 9
+	min_compatible_version: 1;
 	param 0 {
 		param_max_speed {
 			type: int;