upd: README

README.md

-# mfm.js
-An MFM parser implementation with TypeScript.
-[Try it out!](https://runkit.com/npm/mfm-js)
-
-[![Test](https://github.com/misskey-dev/mfm.js/actions/workflows/test.yml/badge.svg)](https://github.com/misskey-dev/mfm.js/actions/workflows/test.yml)
-[![codecov](https://codecov.io/gh/misskey-dev/mfm.js/branch/develop/graph/badge.svg?token=irAWFiHK8T)](https://codecov.io/gh/misskey-dev/mfm.js)
-
-[![NPM](https://nodei.co/npm/mfm-js.png?downloads=true&downloadRank=true&stars=true)](https://www.npmjs.com/package/mfm-js)
+# sfm.js
+An SFM parser implementation with fixes based on MFM
 
 ## Installation
 ```
-npm i mfm-js
+npm config set @sharkey:registry https://git.joinsharkey.org/api/packages/Sharkey/npm/
+npm i @sharkey/sfm-js
 ```
 
 ## Usage
@@ -17,7 +12,7 @@ Please see [docs](./docs/index.md) for the detail.
 
 TypeScript:
 ```ts
-import * as mfm from 'mfm-js';
+import * as mfm from '@sharkey/sfm-js';
 
 const inputText =
 `<center>
@@ -42,12 +37,12 @@ const text = mfm.toString(mfmTree);
 ## Develop
 ### 1. Clone
 ```
-git clone https://github.com/misskey-dev/mfm.js.git
+git clone https://git.joinsharkey.org/Sharkey/sfm.js.git
 ```
 
 ### 2. Install packages
 ```
-cd mfm.js
+cd sfm.js
 npm i
 ```