Update README.md

README.md

@@ -3,8 +3,26 @@ The Constrained and Unconstrained Testing Environment with safe threads (CUTEst)
 
 See the [wiki](https://github.com/ralna/CUTEst/wiki) for download and installation instructions
 
-<!---
-[![Build Status](https://travis-ci.org/ralna/CUTEst.svg?branch=master)](https://travis-ci.org/ralna/CUTEst)
--->
+[![Build Status](https://img.shields.io/github/actions/workflow/status/ralna/CUTEst/ci.yml?branch=master)](https://github.com/ralna/SIFDecode/actions/workflows/ci.yml)
 
 [![License: LGPL v3](https://img.shields.io/badge/License-LGPL%20v3-blue.svg)](https://www.gnu.org/licenses/lgpl-3.0)
+
+## Installation
+
+### Precompiled library and executables
+
+We provide precompiled CUTEst libraries and executables in the [releases tab](https://github.com/ralna/SIFDecode/releases/latest/) for Linux, macOS (Intel & Silicon) and Windows.
+
+### Installation from source
+
+CUTEst can be installed using the [Meson build system](https://mesonbuild.com) (all commands below are to be run from the top of the source tree):
+
+```shell
+meson setup builddir
+meson compile -C builddir
+meson install -C builddir
+meson test -C builddir
+```
+
+CUTEst can also be installed via the "make" build system based on [ARCHDefs](https://github.com/ralna/ARCHDefs).
+To use this variant, follow the instructions in the CUTEst [wiki](https://github.com/ralna/CUTEst/wiki).