readme: do not repeat installation instructions (#5246)

README.md

@@ -18,138 +18,9 @@ The [complete documentation](https://python-poetry.org/docs/) is available on th
 
 ## Installation
 
-Poetry provides a custom installer that will install `poetry` isolated
-from the rest of your system.
-
-### osx / linux / bashonwindows install instructions
-```bash
-curl -sSL https://install.python-poetry.org | python3 -
-```
-### windows powershell install instructions
-```powershell
-(Invoke-WebRequest -Uri https://install.python-poetry.org -UseBasicParsing).Content | python -
-```
-
-**Warning**: The previous `get-poetry.py` installer is now deprecated, if you are currently using it
-you should migrate to the new, supported, `install-poetry.py` installer.
-
-The installer installs the `poetry` tool to Poetry's `bin` directory. This location depends on your system:
-
-- `$HOME/.local/bin` for Unix
-- `%APPDATA%\Python\Scripts` on Windows
-
-If this directory is not on your `PATH`, you will need to add it manually
-if you want to invoke Poetry with simply `poetry`.
-
-Alternatively, you can use the full path to `poetry` to use it.
-
-Once Poetry is installed you can execute the following:
-
-```bash
-poetry --version
-```
-
-If you see something like `Poetry (version 1.2.0)` then you are ready to use Poetry.
-If you decide Poetry isn't your thing, you can completely remove it from your system
-by running the installer again with the `--uninstall` option or by setting
-the `POETRY_UNINSTALL` environment variable before executing the installer.
-
-```bash
-curl -sSL https://install.python-poetry.org | python3 - --uninstall
-curl -sSL https://install.python-poetry.org | POETRY_UNINSTALL=1 python3 -
-```
-
-By default, Poetry is installed into the user's platform-specific home directory.
-If you wish to change this, you may define the `POETRY_HOME` environment variable:
-
-```bash
-curl -sSL https://install.python-poetry.org | POETRY_HOME=/etc/poetry python3 -
-```
-
-If you want to install prerelease versions, you can do so by passing `--preview` option to `install-poetry.py`
-or by using the `POETRY_PREVIEW` environment variable:
-
-```bash
-curl -sSL https://install.python-poetry.org | python3 - --preview
-curl -sSL https://install.python-poetry.org | POETRY_PREVIEW=1 python3 -
-```
-
-Similarly, if you want to install a specific version, you can use `--version` option or the `POETRY_VERSION`
-environment variable:
-
-```bash
-curl -sSL https://install.python-poetry.org | python3 - --version 1.2.0
-curl -sSL https://install.python-poetry.org | POETRY_VERSION=1.2.0 python3 -
-```
-
-You can also install Poetry for a `git` repository by using the `--git` option:
-
-```bash
-curl -sSL https://install.python-poetry.org | python3 - --git https://github.com/python-poetry/poetry.git@master
-````
-
-_Note that the installer does not support Python < 3.7._
-
-## Updating `poetry`
-
-Updating poetry to the latest stable version is as simple as calling the `self update` command.
-
-**Warning**: Poetry versions installed using the now deprecated `get-poetry.py` installer will not be able to use this
-command to update to 1.2 releases or later. Migrate to using the `install-poetry.py` installer or `pipx`.
-
-```bash
-poetry self update
-```
-
-If you want to install prerelease versions, you can use the `--preview` option.
-
-```bash
-poetry self update --preview
-```
-
-And finally, if you want to install a specific version you can pass it as an argument
-to `self update`.
-
-```bash
-poetry self update 1.2.0
-```
-
-
-## Enable tab completion for Bash, Fish, or Zsh
-
-`poetry` supports generating completion scripts for Bash, Fish, and Zsh.
-See `poetry help completions` for full details, but the gist is as simple as using one of the following:
-
-```bash
-# Bash
-poetry completions bash > /etc/bash_completion.d/poetry.bash-completion
-
-# Fish
-poetry completions fish > ~/.config/fish/completions/poetry.fish
-
-# Zsh
-poetry completions zsh > ~/.zfunc/_poetry
-
-# Zsh (Oh-My-Zsh)
-mkdir $ZSH_CUSTOM/plugins/poetry
-poetry completions zsh > $ZSH_CUSTOM/plugins/poetry/_poetry
-rm ~/.zcompdump*
-# add `poetry` in the `plugins` list (https://github.com/ohmyzsh/ohmyzsh#enabling-plugins)
-
-# Zsh (prezto)
-poetry completions zsh > ~/.zprezto/modules/completion/external/src/_poetry
-```
-
-*Note:* you may need to restart your shell in order for the changes to take
-effect.
-
-For `zsh`, you must then add the following line in your `~/.zshrc` before
-`compinit` (not for homebrew setup):
-
-```zsh
-fpath+=~/.zfunc
-```
-
+Instructions on how to install `poetry` can be found [here](https://python-poetry.org/docs/master/#installation).
+You can also refer [here](https://python-poetry.org/docs/master/#enable-tab-completion-for-bash-fish-or-zsh) for
+information on how to enable tab completion in your environment.
 
 ## Introduction