Update documentation

Author: AntonOresten

docs/make.jl

@@ -14,6 +14,7 @@ makedocs(;
     ),
     pages=[
         "Home" => "index.md",
+        "API" => "api.md",
     ],
 )
 

docs/src/api.md

@@ -0,0 +1,20 @@
+# API
+
+## `rearrange`
+
+```@docs
+rearrange
+```
+
+## `pack` and `unpack`
+
+```@docs
+pack
+unpack
+```
+
+## `@einops_str`
+
+```@docs
+@einops_str
+```

docs/src/index.md

@@ -6,9 +6,18 @@ CurrentModule = Einops
 
 Documentation for [Einops](https://github.com/MurrellGroup/Einops.jl).
 
-```@index
+## Installation
+
+```julia
+using Pkg
+pkg"add Einops"
 ```
 
-```@autodocs
-Modules = [Einops]
+## Contents
+
+```@contents
+Pages = [
+    "index.md",
+    "api.md"
+]
 ```