doc: add upgrading instructions and link to migration guide; #450

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@ -74,6 +74,17 @@ for file in $fisher_path/conf.d/*.fish
end end
``` ```
### Migrating from V2 to V3
The easiest way to upgrade to V3 from V2 is to uninstall V2 first using:
```
fisher self-uninstall
```
...and install V3 from scratch using the recommended [installation instructions](https://github.com/jorgebucaran/fisher#installation). See [#450](https://github.com/jorgebucaran/fisher/issues/450) for more options.
## Usage ## Usage
You've found an interesting utility you'd like to try out. Or perhaps you've [created a package](#creating-your-own-package) yourself. How do you install it on your system? You may want to update or remove it later too. How do you do that? You've found an interesting utility you'd like to try out. Or perhaps you've [created a package](#creating-your-own-package) yourself. How do you install it on your system? You may want to update or remove it later too. How do you do that?