add fish completion to doc

README.md

@@ -122,7 +122,7 @@ shell (*~/.bashrc*, *~/.zshrc*, etc) with the config file path, for example
 alias dotdrop='<absolute-path-to-dotdrop.sh> --cfg=<path-to-your-config.yaml>'
 ```
 
-For bash and zsh completion scripts see [the related doc](completion/README.md).
+Completion scripts exist for `bash`, `zsh` and `fish`, see [the related doc](completion/README.md).
 
 # Getting started
 

completion/README.md

@@ -1,8 +1,8 @@
-Here are the completion files for `bash` and `zsh`
+Here are the completion files for `bash`, `zsh` and `fish`.
 for the use of dotdrop either through the bash script `dotdrop.sh`
 or through the python script `dotdrop` (pypi, snap, setup.py, etc).
 
-Those files are generated using
+`bash` and `zsh` scripts are generated using
 [infi.docopt_completion](https://github.com/Infinidat/infi.docopt_completion).
 
 # bash
@@ -18,3 +18,16 @@ Copy the file in a path within `${fpath}`
 
 * if using `dotdrop.sh`: [_dotdrop.sh-completion.zsh](_dotdrop.sh-completion.zsh)
 * if using `dotdrop`: [_dotdrop-completion.zsh](_dotdrop-completion.zsh)
+
+# fish
+
+Install for your user:
+```bash
+mkdir -p ~/.config/fish/completions
+cp dotdrop.fish ~/.config/fish/completions/
+```
+
+Install system-wide:
+```bash
+cp dotdrop.fish /usr/share/fish/completions/
+```