Merge pull request #12 from Mithrandir2k18/docs/install_methods

docs: Document methods to get the latest neovim

Author: oriori1703

README.md

@@ -17,7 +17,14 @@ A starting point for Neovim that is:
 Kickstart.nvim targets *only* the latest
 ['stable'](https://github.com/neovim/neovim/releases/tag/stable) and latest
 ['nightly'](https://github.com/neovim/neovim/releases/tag/nightly) of Neovim.
-If you are experiencing issues, please make sure you have the latest versions.
+If you are experiencing issues, please make sure you have at least the latest
+stable version. Most likely, you want to install neovim via a [package
+manager](https://github.com/neovim/neovim/blob/master/INSTALL.md#install-from-package).
+To check your neovim version, run `nvim --version` and make sure it is not
+below the latest
+['stable'](https://github.com/neovim/neovim/releases/tag/stable) version. If
+your chosen install method only gives you an outdated version of neovim, find
+alternative [installation methods below](#alternative-neovim-installation-methods).
 
 ### Install External Dependencies
 
@@ -154,7 +161,7 @@ examples of adding popularly requested plugins.
 
 Below you can find OS specific install instructions for Neovim and dependencies.
 
-After installing all the dependencies continue with the [Install Kickstart](#Install-Kickstart) step.
+After installing all the dependencies continue with the [Install Kickstart](#install-kickstart) step.
 
 #### Windows Installation
 
@@ -239,3 +246,77 @@ sudo pacman -S --noconfirm --needed gcc make git ripgrep fd unzip neovim
 ```
 </details>
 
+### Alternative neovim installation methods
+
+For some systems it is not unexpected that the [package manager installation
+method](https://github.com/neovim/neovim/blob/master/INSTALL.md#install-from-package)
+recommended by neovim is significantly behind. If that is the case for you,
+pick one of the following methods that are known to deliver fresh neovim versions very quickly.
+They have been picked for their popularity and because they make installing and updating
+neovim to the latest versions easy. You can also find more detail about the
+available methods being discussed
+[here](https://github.com/nvim-lua/kickstart.nvim/issues/1583).
+
+
+<details><summary>Bob</summary>
+
+[Bob](https://github.com/MordechaiHadad/bob) is a Neovim version manager for
+all plattforms. Simply install
+[rustup](https://rust-lang.github.io/rustup/installation/other.html),
+and run the following commands:
+
+```bash
+rustup default stable
+rustup update stable
+cargo install bob-nvim
+bob use stable
+```
+
+</details>
+
+<details><summary>Homebrew</summary>
+
+[Homebrew](https://brew.sh) is a package manager popular on Mac and Linux.
+Simply install using [`brew install`](https://formulae.brew.sh/formula/neovim).
+
+</details>
+
+<details><summary>Flatpak</summary>
+
+Flatpak is a package manager for applications that allows developers to package their applications
+just once to make it available on all Linux systems. Simply [install flatpak](https://flatpak.org/setup/)
+and setup [flathub](https://flathub.org/setup) to [install neovim](https://flathub.org/apps/io.neovim.nvim).
+
+</details>
+
+<details><summary>asdf and mise-en-place</summary>
+
+[asdf](https://asdf-vm.com/) and [mise](https://mise.jdx.dev/) are tool version managers,
+mostly aimed towards project-specific tool versioning. However both support managing tools
+globally in the user-space as well:
+
+<details><summary>mise</summary>
+
+[Install mise](https://mise.jdx.dev/getting-started.html), then run:
+
+```bash
+mise plugins install neovim
+mise use neovim@stable
+```
+
+</details>
+
+<details><summary>asdf</summary>
+
+[Install asdf](https://asdf-vm.com/guide/getting-started.html), then run:
+
+```bash
+asdf plugin add neovim
+asdf install neovim stable
+asdf set neovim stable --home
+asdf reshim neovim
+```
+
+</details>
+
+</details>