Add info about the version field

README.md

@@ -35,7 +35,12 @@ pont build --name <template-name> --from <source>
 ## How does it work?
 
 Pont creates a `pont.yaml` file when you initialize a new project, which it then consumes during the build process.  
-A `pont.yaml` file contains 3 fields: the template's name (which will be replaced by your project name), a list of commands that will be run when the project is built, and a list of ignored files (which will not get their name or content replaced).  
+A `pont.yaml` file contains 4 fields: 
+- the `pont` version used for the template (the local `pont` version should match this). 
+- the template's name (which will be replaced by your project name);
+-  a list of commands that will be run when the project is built;
+-  a list of ignored files (which will not get their name or content replaced).
+
 It is a good idea to always include the `.git` directory in the `ignore` list, as attempting to rewrite any of the files inside it might corrupt your Git repository.  
 
 `pont.yaml` example: