chore: version recipe model

README.md

@@ -1,3 +1,11 @@
 # Schema
 
 TypeSpec schema for BlueBuild.
+
+## Versioning
+
+The recipe model uses a crude versioning scheme:_
+- The baseUri and filename of the recipe schema is `recipe-vX.json`
+- `X` is be the number of the version of the recipe format the model represents, starting at `1`.
+    - When a breaking change is made, the number shall be incremented by one. The old version should also be kept, with the previous version number, and in a separate file and model. 
+    - This number may be used to select which version of the standard to process in [blue-build/cli](https://github.com/blue-build/cli/)

src-tsp/main.tsp

@@ -3,8 +3,8 @@ import "./modules.tsp";
 
 using TypeSpec.JsonSchema;
 
-@jsonSchema("recipe.json")
-model recipe {
+@jsonSchema("recipe-v1.json")
+model Recipe {
     name: string,
     description: string,
     "base-image": string,