Added hint for project moved to github

README.md

+# http-server-upload
+
+## ❗❗❗ Project moved ❗❗❗
+
+The source of this project has been moved to GitHub.
+
+This repository here will no longe be maintained.
+
+See https://github.com/crycode-de/http-server-upload
+
+---
+
+[![NPM version](https://img.shields.io/npm/v/http-server-upload.svg)](https://www.npmjs.com/package/http-server-upload)
+[![Downloads](https://img.shields.io/npm/dm/http-server-upload.svg)](https://www.npmjs.com/package/http-server-upload)
+[![Dependency Status](https://img.shields.io/david/crycode-de/http-server-upload.svg)](https://david-dm.org/crycode-de/http-server-upload)
+
+[![NPM](https://nodei.co/npm/http-server-upload.png?downloads=true)](https://nodei.co/npm/http-server-upload/)
+
+This is a simple zero-configuration command-line http server which provides a lightweight interface to upload files.
+
+By default files are uploaded to the current working directory.
+
+Optionally a token may be used to protect against unauthorized uploads.
+
+
+## Installation
+
+```
+npm install --global http-server-upload
+```
+
+This will install `http-server-upload` globally so that it may be tun from the command line.
+
+
+## Usage
+
+```
+http-server-upload [uploadRootPath]
+```
+
+`[uploadRootPath]` defaults to the current working directory (`./`).
+
+Other options can be set using environment variables.
+
+When the server is running you can visit http://localhost:8080/ to get the upload form.
+
+*Attention:* Already existing files will be overwritten on upload.
+
+
+### Environment variables
+
+| Variable | Description | Default |
+|---|---|---|
+| `PORT` | The port to use. | `8080` |
+| `UPLOAD_DIR` | The directory where the files should be uploaded to. This overrides the `uploadRootPath` argument. | `uploadRootPath` argument or the current working directory |
+| `UPLOAD_TMP_DIR` | Temp directory for the file upload. | The upload directory. |
+| `TOKEN` | An optional token which must be provided on upload. | Nothing |
+| `PATH_REGEXP` | A regular expression to verify a given upload path. This should be set with care, because it may allow write access to outside the upload directory. | `/^[a-zA-Z0-9-_/]*$/` |
+
+Example:
+```
+PORT=9000 UPLOAD_DIR=~/uploads/ UPLOAD_TMP_DIR=/tmp/ TOKEN=my-super-secret-token http-server-upload
+```
+
+
+### Uploads from the command line
+
+If the `http-server-upload` is running, you may also upload files from the command line using `curl`:
+```
+curl -F "uploads=@my-file.txt" http://localhost:8080/upload
+```
+
+Advanced example with multiple files, an upload path and a required token:
+```
+curl \
+  -F "uploads=@my-file.txt" \
+  -F "uploads=@my-other-file.txt" \
+  -F "path=my/dir" \
+  -F "token=my-super-secret-token" \
+  http://localhost:8080/upload
+```
+
+
+## License
+
+MIT license
+
+Copyright (c) 2019-2021 Peter Müller <peter@crycode.de> https://crycode.de