Make unified docs more similar

Author: ArnoStrouwen

docs/src/index.md

@@ -1,36 +1,12 @@
-# LinearSolve.jl: High-Performance Unified Linear Solvers
+# Overview
 
-LinearSolve.jl is a unified interface for the linear solving packages of
+LinearSolve.jl is a high-performance unified interface for the linear solving packages of
 Julia. It interfaces with other packages of the Julia ecosystem
 to make it easy to test alternative solver packages and pass small types to
 control algorithm swapping. It also interfaces with the
 [ModelingToolkit.jl](https://mtk.sciml.ai/dev/) world of symbolic modeling to
 allow for automatically generating high-performance code.
 
-Performance is key: the current methods are made to be highly performant on
-scalar and statically sized small problems, with options for large-scale systems.
-If you run into any performance issues, please file an issue.
-
-## Installation
-
-To install LinearSolve.jl, use the Julia package manager:
-
-```julia
-using Pkg
-Pkg.add("LinearSolve")
-```
-
-## Contributing
-
-- Please refer to the
-  [SciML ColPrac: Contributor's Guide on Collaborative Practices for Community Packages](https://github.com/SciML/ColPrac/blob/master/README.md)
-  for guidance on PRs, issues, and other matters relating to contributing to ModelingToolkit.
-- There are a few community forums:
-    - the #diffeq-bridged channel in the [Julia Slack](https://julialang.org/slack/)
-    - [JuliaDiffEq](https://gitter.im/JuliaDiffEq/Lobby) on Gitter
-    - on the [Julia Discourse forums](https://discourse.julialang.org)
-    - see also [SciML Community page](https://sciml.ai/community/)
-
 ## Roadmap
 
 Wrappers for every linear solver in the Julia language is on the roadmap. If