📝 Fill out README

README.md

@@ -6,8 +6,80 @@ It takes a lot of inspiration (although no actual code) from [Onym](https://gith
 
 Note that this is still not at a stable release. There will be breaking changes between minor releases until it reaches 1.0.0. Patch releases shouldn't contain breaking changes however. Once it reaches 1.0.0, breaking changes will only happen between major releases.
 
-## TODO
+Make sure to check out the [official documentation][docs].
 
-I'll fill this out more in depth later.
+## Installation
 
-For now, check [official documentation](https://pkg.go.dev/codeberg.org/danjones000/nomino).
+Add `codeberg.org/danjones000/nomino` to your project. You can do `go get codeberg.org/danjones000/nomino`, or simply add it to an import and run `go mod tidy`.
+
+But, you probably already know this.
+
+## Usage
+
+There are **a lot** of examples in the [official documentation][examples]. Take a look through these to get an idea.
+
+The main concept in `nomino` is the [Generator][]. The simplest way to generate a random filename, is to use the [Generator][] directly, in this way:
+
+```go
+import (
+    "fmt"
+    "codeberg.org/danjones000/nomino"
+)
+
+func main() {
+    name, _ := nomino.Random().Make()
+    fmt.Println(name) // Du3Sfh8p.txt
+}
+```
+
+The second argument is an error. Most of the generators are always successful, and that error will be `nil`, but you should check the errors if you're not sure.
+
+The second way to generate a new filename is using the [Make][] function.
+
+```go
+import (
+    "fmt"
+    "codeberg.org/danjones000/nomino"
+)
+
+func main() {
+    config := nomino.NewConfig(nomino.WithGenerator(nomino.Random()))
+    name, _ := nomino.Make(config)
+    fmt.Println(name) // Du3Sfh8p.txt
+}
+```
+
+Although in these examples, `nomino.Make` is more verbose, it can be beneficial to using that function if you have some customizations to how you generate the filenames.
+
+### Configuration
+
+The [Config][] allows you to customize how the generated filename works with various [Options][Option]. The [options][Option] allows you to customize things like [adding a prefix](https://pkg.go.dev/codeberg.org/danjones000/nomino#WithPrefix), or changing the [extension](https://pkg.go.dev/codeberg.org/danjones000/nomino#WithExtension) of the generated filename (by default, it uses `.txt`).
+
+Have a look at [all the Options][Option].
+
+### Generator
+
+The [Generator][] is the piece that returns the "random" portion of the generated filename, although, it doesn't actually have to be random.
+
+Here are the built-in [Generators][Generator]:
+
+- [UUID](https://pkg.go.dev/codeberg.org/danjones000/nomino#UUID) generates a UUID. This is the default if none is specified.
+- [Random](https://pkg.go.dev/codeberg.org/danjones000/nomino#Random) generates a random string. By default, it's 8 characters long, but can be whatever length you provide.
+- [Incremental](https://pkg.go.dev/codeberg.org/danjones000/nomino#Incremental) will generate just a series of integers, starting at 0.
+- [Timestamp](https://pkg.go.dev/codeberg.org/danjones000/nomino#Timestamp) generates a string from the current time. It will look like "2009-11-10T23-00-00+0000.txt", although this can be customized.
+- Both [Slug](https://pkg.go.dev/codeberg.org/danjones000/nomino#Slug) and [Hash](https://pkg.go.dev/codeberg.org/danjones000/nomino#Hash) work on the original name provided by [WithOriginal](https://pkg.go.dev/codeberg.org/danjones000/nomino#WithOriginal). Slug generats a slug from the name, while Hash hashes it. By default, it uses MD5.
+
+You can also use multiple generators, either [in order](https://pkg.go.dev/codeberg.org/danjones000/nomino#MultiGeneratorInOrder), or [in a random order](https://pkg.go.dev/codeberg.org/danjones000/nomino#MultiGeneratorRandomOrder).
+
+Finally, you can create a [custom generator](https://pkg.go.dev/codeberg.org/danjones000/nomino#example-WithGenerator-CustomGenerator) as well.
+
+## RTFM (Read the fabulous manual)
+
+[Official docs][docs], especially the [examples][].
+
+[docs]: https://pkg.go.dev/codeberg.org/danjones000/nomino
+[examples]: https://pkg.go.dev/codeberg.org/danjones000/nomino#pkg-examples
+[Generator]: https://pkg.go.dev/codeberg.org/danjones000/nomino#Generator
+[Config]: https://pkg.go.dev/codeberg.org/danjones000/nomino#Config
+[Option]: https://pkg.go.dev/codeberg.org/danjones000/nomino#Option
+[Make]: https://pkg.go.dev/codeberg.org/danjones000/nomino#Make