Fix jsons (#10)

* remove trailing commas from docs/json files

Remove trailing commas from docs/json files to prevent JSON validation
errors.

* add missing property names to docs/json

Prior to this patch, json schema validators would fail since
`properties` should be an `object` and not an `array`.

To fix that, this patch is replacing the `array` with an `object` and
providing proper keys to the internal children schemas.

Note: keys with an underline as a prefix are simple acronyms that match
the description of the schemas. They might not reflect the real property
names. The idea is to replace them with the proper values in the next
commits.

* add script to generate markdown documentation from schemas

Add a script on `package.json` to generate markdown documentation from
schemas. The markdown generator being used is the adobe
jsonschema2markdown tool (https://github.com/adobe/jsonschema2md).

Script is called `doc` and the generated markdowns are stored in
`docs/md`.

Co-authored-by: Guilherme Campos Camargo <[email protected]>

Author: lucemia

.gitignore

@@ -10,4 +10,5 @@ ZXPSignCmd.exe
 signer.bat
 commands.txt
 debug.txt
-package-lock.json
+package-lock.json
+docs/md/

docs/json/helpers/mask.json

@@ -74,7 +74,7 @@
           "const": "f"
         }
       ],
-      "default": "a",
+      "default": "a"
     }
   }
 }

docs/json/helpers/transform.json

@@ -11,7 +11,7 @@
         },
         {
           "$ref": "#/properties/multiDimensionalKeyframed"
-        },
+        }
       ],
       "default": {"a":0, "k":[0, 0, 0]},
       "type": "object"