Smaller fixes to JSON specification

JSON.md

@@ -4,7 +4,7 @@ The CFEngine Build website and tooling relies on JSON files for different purpos
 
 - The project file (`cfbs.json`) generated by running `cfbs init` when you start a new project
 - The index of all available modules which is available on GitHub
-- A cfbs.json file with necessary metadata for adding a module using URL (not from index)
+- A `cfbs.json` file with necessary metadata for adding a module using URL (not from index)
 
 All these 3 share 1 standard format, commonly called `cfbs.json`.
 
@@ -14,7 +14,7 @@ All these 3 share 1 standard format, commonly called `cfbs.json`.
 
 `index`: URL, relative path, or inline dictionary.
 Used by `cfbs add` and `cfbs search`, when index key is present in `cfbs.json` in the current working directory.
-When adding a module by URL, which has a cfbs.json inside of it, the index in that file should be ignored.
+When adding a module by URL, which has a `cfbs.json` inside of it, the index in that file should be ignored.
 
 ## Examples
 
@@ -143,8 +143,7 @@ If you put your modules in a repo and don't have them in the index (yet), you ca
  "tags": ["local"],
  "version": "1.0.0",
  "dependencies": ["autorun"],
- "steps": ["copy ./test.cf services/autorun/test.cf"],
- "added_by": "cfbs add"
+ "steps": ["copy ./test.cf services/autorun/test.cf"]
  }
  }
 }