Add documentation on the cli

docs/cli.md

@@ -0,0 +1,84 @@
+# CLI
+
+Since Version 2.2, Random Bunny contains a command line interface (CLI).
+
+## Default Output
+
+By default, the command will fetch a random image from `r/rabbits` and return it in a human-readable output.
+
+```
+$ randombunny
+
+Archived = false
+Downvotes = 0
+Hidden = false
+Permalink = /r/Rabbits/comments/1av1rg9/cute_baby_bun/
+Subreddit = Rabbits
+Subreddit Subscribers = 486084
+Title = Cute baby bun
+Upvotes = 211
+Url = https://i.redd.it/sfz0srdrimjc1.png
+```
+
+## Help
+
+The command also includes a help option in case you are stuck.
+
+```
+$ randombunny --help
+
+# or
+
+$ randombunny -h
+
+Usage: random-bunny [options]
+
+Get a random image url from a subreddit of your choosing
+
+Options:
+  -V, --version                output the version number
+  -s, --subreddit <subreddit>  The subreddit to search (default: "rabbits")
+  -j, --json                   Output as JSON
+  -q, --query-metadata         Include query metadata in result
+  --sort <sort>                Sort by (choices: "hot", "new", "top", default: "hot")
+  -h, --help                   display help for command
+✨  Done in 0.32s.
+```
+
+## JSON output
+
+You can also convert the output into JSON, if you need to input it to another program.
+
+```bash
+$ randombunny --json
+
+# or
+
+$ randonbunny -j
+
+{"Archived":false,"Downs":0,"Hidden":false,"Permalink":"/r/Rabbits/comments/1av1rg9/cute_baby_bun/","Subreddit":"Rabbits","SubredditSubscribers":486085,"Title":"Cute baby bun","Ups":210,"Url":"https://i.redd.it/sfz0srdrimjc1.png"}
+```
+
+## Sort
+
+You can also choose the sorting option which reddit will use to return the available posts to randomise from.
+
+This defaults to "hot". The valid options are "hot", "new", and "top".
+
+```
+$ randombunny --sort hot
+$ randombunny --sort new
+$ randomBunny --sort top
+```
+
+
+## Subreddit
+
+You can change the subreddit which the command fetches from.
+
+This defaults to "rabbits"
+
+```
+$ randombunny --subreddit rabbits
+$ randombunny -s horses
+```

readme.md

@@ -44,6 +44,12 @@ The json string which gets returned consists of:
 
 `sortBy` will default to 'hot' if not given or invalid
 
+## CLI
+
+Random bunny can also be used as a CLI. This is accessible via the executable (see git releases) or via `src/cli.ts`
+
+For more details, see the documentation.
+
 ## Notes
 
 * Node 4 or newer.