Add documentation for installation (#317)

* implement

* Revert "implement"

This reverts commit 171505a.

* some improvements to the documentation

* some more fixes

* add install documentation

* add paraview

* implement suggestions

* update

* update

* remove file

* fix

---------

Co-authored-by: Erik Faulhaber <[email protected]>

docs/src/install.md

@@ -1 +1,40 @@
-# Installation
+# Installation
+
+## Setting up Julia
+If you have not yet installed Julia, please [follow the instructions for your
+operating system](https://julialang.org/downloads/platform/). TrixiParticles.jl works
+with Julia v1.9 and newer. We recommend using the latest stable release of Julia.
+
+## Installation for users
+
+
+## [Installation for developers](@id for-developers)
+If you plan on editing TrixiParticles.jl itself, you can download TrixiParticles.jl to a local folder and use the
+code from the cloned directory:
+```bash
+git clone [email protected]:trixi-framework/TrixiParticles.jl.git
+cd TrixiParticles.jl
+mkdir run
+julia --project=run -e 'using Pkg; Pkg.develop(PackageSpec(path=".."))' # Install locally
+julia --project=run -e 'using Pkg; Pkg.add("OrdinaryDiffEq")' # Add TrixiParticles.jl to `run` project
+```
+
+If you installed TrixiParticles.jl this way, you always have to start Julia with the `--project`
+flag set to your `run` directory, e.g.,
+```bash
+julia --project=run
+```
+from the TrixiParticles.jl root directory.
+
+The advantage of using a separate `run` directory is that you can also add other
+related packages (e.g., OrdinaryDiffEq.jl, see above) to the project in the `run` folder
+and always have a reproducible environment at hand to share with others.
+
+## Optional Software/Packages
+- [OrdinaryDiffEq.jl](https://github.com/SciML/OrdinaryDiffEq.jl) -- a Julia package of ordinary differential equation solvers that is used in the examples
+- [Plots.jl](https://github.com/JuliaPlots/Plots.jl) -- Julia Plotting library that is used in some examples
+- [PythonPlot.jl](https://github.com/JuliaPy/PythonPlot.jl) -- Plotting library that can be used instead of Plots.jl
+- [ParaView](https://www.paraview.org/) -- Software that can be used for visualization of results
+
+## Common issues
+