Final important readme added

Stokes_rotation/README.md

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+## Overview
+
+This folder contains source code for finding the optimal orientation of nine objects in Stokes flow, where drag is minimized.
+
+### Files
+
+- In the output folder, a **Paraview** for creating the figures from the second submission can be found. Note that **pvpython** is not included in the Docker-image.
+- **scipysolver.py** contains the optimization problem used in the article. This folder uses classes from **StokesSolver.py**, which defines the MultiMesh Stokes problem for 9 objects in a channel with two inlets and one outlet.
+- **ipoptsolver.py** contains a similar IPOPT implementation of the optimization problem. This is not used in the article.