Add archive message in README.

README.md

@@ -1,193 +1,3 @@
-# pony-stable
+Stable is no longer being developed.
 
-A simple dependency manager for the [Pony language](http://www.ponylang.io/).
-
-Too many ponies to keep track of?
-
-Put them in a stable and make your life easier.
-
-<a href="https://openclipart.org/detail/11509/rpg-map-symbols-stables"><img src="https://openclipart.org/download/11509/nicubunu-RPG-map-symbols-Stables.svg" width="400px" /></a>
-
-## Status
-
-[![Actions Status](https://github.com/ponylang/pony-stable/workflows/vs-ponyc-latest/badge.svg)](https://github.com/ponylang/pony-stable/actions)
-
-Production ready.
-
-## Installation
-
-### Debian and Ubuntu Linux using a DEB package (via Bintray)
-
-For Debian and Ubuntu versions of Linux, the `release` builds are packaged and available on Bintray ([pony-language/ponyc-debian](https://bintray.com/pony-language/ponyc-debian)).
-
-To install builds via Apt (and install Bintray's public key):
-
-```bash
-sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys D401AB61 DBE1D0A2
-echo "deb https://dl.bintray.com/pony-language/pony-stable-debian /" | sudo tee -a /etc/apt/sources.list
-sudo apt-get update
-sudo apt-get -V install pony-stable
-```
-
-### macOS
-
-```bash
-brew install pony-stable
-```
-
-### Linux using an RPM package (via COPR)
-
-For Red Hat, CentOS, Oracle Linux, Fedora Linux, or openSUSE, the `release` builds are packaged and available on COPR ([ponylang/ponylang](https://copr.fedorainfracloud.org/coprs/ponylang/ponylang/)).
-
-#### Using `yum` for Red Hat, CentOS, Oracle Linux and other RHEL compatible systems:
-
-```bash
-yum copr enable ponylang/ponylang epel-7
-yum install pony-stable
-```
-
-See https://bugzilla.redhat.com/show_bug.cgi?id=1581675 for why `epel-7` is required on the command line.
-
-#### Using `DNF` for Fedora Linux:
-
-```bash
-dnf copr enable ponylang/ponylang
-dnf install pony-stable
-```
-
-#### Using Zypper for openSUSE Leap 15:
-
-```bash
-zypper addrepo --refresh --repo https://copr.fedorainfracloud.org/coprs/ponylang/ponylang/repo/opensuse-leap-15.0/ponylang-ponylang-opensuse-leap-15.0.repo
-wget https://copr-be.cloud.fedoraproject.org/results/ponylang/ponylang/pubkey.gpg
-rpm --import pubkey.gpg
-zypper install pony-stable
-```
-
-### Arch Linux
-
-```bash
-pacman -S pony-stable
-```
-
-### From Source
-
-You will need `ponyc` in your PATH.
-
-#### From Source (Unix):
-
-```bash
-git clone https://github.com/ponylang/pony-stable
-cd pony-stable
-make
-sudo make install
-```
-
-#### From Source (Windows):
-
-```batchfile
-git clone https://github.com/ponylang/pony-stable
-cd pony-stable
-make.bat
-```
-
-You will then need to add `pony-stable\bin` to your `PATH`.
-
-## Make a project with dependencies.
-
-### GitHub
-
-```bash
-mkdir myproject && cd myproject
-
-stable add github jemc/pony-inspect
-
-echo '
-use "inspect"
-actor Main
-  new create(env: Env) =>
-    env.out.print(Inspect("Hello, World!"))
-' > main.pony
-```
-
-### GitLab
-
-```bash
-mkdir myproject && cd myproject
-
-stable add gitlab jemc/pony-inspect
-
-echo '
-use "inspect"
-actor Main
-  new create(env: Env) =>
-    env.out.print(Inspect("Hello, World!"))
-' > main.pony
-```
-
-### Local git project
-
-```bash
-mkdir myproject && cd myproject
-
-stable add local-git ../pony-inspect --tag=1.0.2
-
-echo '
-use "inspect"
-actor Main
-  new create(env: Env) =>
-    env.out.print(Inspect("Hello, World!"))
-' > main.pony
-```
-
-The git tag is optional.
-
-### Local (non-git) project
-
-```bash
-mkdir myproject && cd myproject
-
-stable add local ../pony-inspect
-
-echo '
-use "inspect"
-actor Main
-  new create(env: Env) =>
-    env.out.print(Inspect("Hello, World!"))
-' > main.pony
-```
-
-## Fetch dependencies.
-
-```bash
-stable fetch
-# The dependencies listed in `bundle.json` will be fetched
-# and/or updated into the local `.deps` directory.
-```
-```
-Cloning into '.deps/jemc/pony-inspect'...
-remote: Counting objects: 131, done.
-remote: Compressing objects: 100% (8/8), done.
-remote: Total 131 (delta 4), reused 0 (delta 0), pack-reused 123
-Receiving objects: 100% (131/131), 21.73 KiB | 0 bytes/s, done.
-Resolving deltas: 100% (82/82), done.
-Checking connectivity... done.
-```
-
-## Compile in a stable environment.
-
-```bash
-stable env ponyc --debug
-# The local paths to the dependencies listed in `bundle.json`
-# will be included in the `PONYPATH` environment variable,
-# available to `use` in the `ponyc` invocation.
-# You can run any custom command here - not just `ponyc`.
-```
-```
-Building builtin -> /usr/local/lib/pony/0.2.1-204-g87fcb40/packages/builtin
-Building . -> /home/jemc/1/code/hg/myproject
-Building inspect -> /home/jemc/1/code/hg/myproject/.deps/jemc/pony-inspect/inspect
-Generating
-Writing ./myproject.o
-Linking ./myproject
-```
+It's been replaced by [Corral](https://github.com/ponylang/corral).