new landing page

Author: xuyg16

docs/src/index.md

@@ -1,4 +1,10 @@
-# Unfold Documentation
+```@meta
+CurrentModule = Unfold
+```
+
+# Unfold.jl Documentation
+
+Welcome to [Unfold.jl](https://github.com/unfoldtoolbox/Unfold.jl): 
 
 If you want to follow the **tutorials**, best to start with the [mass-univariate approach](@ref lm_massunivariate), which should be familiar to you if you did ERPs before. Then the [overlap-correction tutorial](@ref lm_overlap). If you are then not satisfied, check out more advanced topics: [effects-interface (aka what to do after fitting)](@ref effects), or non-linear effects.
 
@@ -8,17 +14,36 @@ Once you are familiar with the tools, check out further **how-to guides** for sp
 
 In case you want to understand the toolbox better, we plan to offer **technical references**. This includes Benchmarks & Explorations.
 
-## Quick start
 
+```@raw html
+<div style="width:60%; margin: auto;">
+
+</div>
+```
+
+## Key features
+- **Modularity:**
+- **:**
+
+
+## Installation
+```julia-repl
+julia> using Pkg; Pkg.add("Unfold")
+```
+For more detailed instructions please refer to [Installing Julia & Unfold.jl](@ref install_instruct).
+
+
+## Quick start
 There are four main model types
 
 1. Timeexpansion **No**, Mixed **No**  : `fit(UnfoldModel, [Any=>(f, -0.1:0.01:0.5)], evts, data_epoch)`
 1. Timeexpansion **Yes**, Mixed **No** : `fit(UnfoldModel, [Any=>(f, basisfunction)], evts, data)`
 1. Timeexpansion **No**, Mixed **Yes** : `fit(UnfoldModel, [Any=>(fLMM, -0.1:0.01:0.5)], evts, data_epoch)`
 1. Timeexpansion **Yes**, Mixed **Yes**: `fit(UnfoldModel, [Any=>(fLMM, basisfunction)], evts, data)`
 
-## rERP model
 
+## Usage example
+### rERP model
 ```julia
 using Unfold
 using UnfoldSim
@@ -30,9 +55,9 @@ fit(UnfoldModel, [Any=>(f, basisfunction)], evts, data)
 nothing #hide
 ```
 
-## MixedModels
 
-It is also possible to fit Linear Mixed Models using the sister-package `UnfoldMixedModels.jl`
+### MixedModels
+It is also possible to fit Linear Mixed Models using the sister-package [UnfoldMixedModels.jl](https://unfoldtoolbox.github.io/UnfoldDocs/UnfoldMixedModels.jl/stable/)
 
 ```julia
 using UnfoldMixedModels
@@ -46,3 +71,24 @@ fLMM = @formula 0 ~ 1 + condition + (1|subject) + (1|item)
 fit(UnfoldModel, [Any=>(f, times)], evts, data)
 nothing #hide
 ```
+
+## Where to start: Learning roadmap
+### 1. First step
+📌 Goal: 
+🔗 
+
+### 2. Intermediate topics
+📌 Goal: 
+🔗
+
+### 3. Advanced topics
+📌 Goal: 
+🔗
+
+
+## Statement of need
+```@raw html
+<!---
+Note: The statement of need is also used in the `README.md`. Make sure that they are synchronized.
+-->
+```