feat: add prettier-json-stringify formatter (#183)

Adds a new formatter for prettier `prettier-json-stringify` which uses
prettier `json-stringify` parser. `json-stringify` parser is used by
prettier for formatting package.json files

1 files changed, 15 insertions, 0 deletions

diff --git a/test/formatters/samplecode/prettier-json-stringify/out.json b/test/formatters/samplecode/prettier-json-stringify/out.json
new file mode 100644
index 0000000..51ba2a3
--- /dev/null
+++ b/test/formatters/samplecode/prettier-json-stringify/out.json
@@ -0,0 +1,15 @@
+{
+  "name": "test-package-json",
+  "version": "1.0.0",
+  "main": "index.js",
+  "files": [
+    "index.js"
+  ],
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "description": ""
+}