Harmonising README text with rust-training.

README.md

@@ -1,20 +1,32 @@
-# Rust Exercises
+# Ferrous Systems' Rust Exercises
 
-This book contains a collection of Rust Exercises, written by Ferrous Systems. See [ferrous-systems.com/training](https://ferrous-systems.com/training) for more details or a custom quote. You can view this material on-line at <https://rust-exercises.ferrous-systems.com>.
+This is free exercise material produced by Ferrous Systems for trainings. See [ferrous-systems.com/training](https://ferrous-systems.com/training) for more details or a custom quote. You can view this material on-line at <https://rust-exercises.ferrous-systems.com>.
 
-We use these exercises as part of our [Rust Training](https://ferrous-systems.com/training/), but you are welcome to try them for yourself as well.
+It accompanies the Slide decks we use for training, which you can view on-line at <https://rust-training.ferrous-systems.com>.
 
-If you wish to fund further development of the course, why not [book a training with us](https://ferrous-systems.com/training/)!
+The material is created for people with anywhere from zero Rust experience (but with a programming background) to advanced Rust knowledge.
 
-# Reading the book
+Ferrous Systems offers a large Rust curriculum for both beginner and advanced Rust developers.
+
+Ferrous Systems specialises in custom, topic focused workshops for enterprises starting or expanding their use of Rust. Supplemental to our courses, we offer ongoing help and feedback.
+
+## Overview
+
+The materials are presented as a set of small, self-contained lessons on a specific topic. Note that lessons might be revised, extended, or removed, when necessary to keep material up to date or relevant to new audiences.
+
+We assemble these lessons into various programmes for our commercial trainings. We can also provide custom lessons - please [reach out](https://ferrous-systems.com/contact) if that is of interest.
+
+## Reading the material
+
+This material is organised as an [`mdbook`](https://crates.io/crates/mdbook), along with source code in the form of worked solutions and/or starting templates.
 
 You can:
 
 * View the `main` branch on-line at <https://rust-exercises.ferrous-systems.com/latest/book>
 * View a specific tag like `v1.10.0` at <https://rust-exercises.ferrous-systems.com/v1.10.0/book>
 * Browse [the chapters of the book on Github](./exercise-book/src/SUMMARY.md)
-* Browse [the exercises on Github](./exercise-templates)
-* Browse [the solutions on Github](./exercise-solutions)
+* Browse [the starting templates on Github](./exercise-templates)
+* Browse [the worked solutions on Github](./exercise-solutions)
 * Clone the repo, and build the book (see [Building the material locally](#building-the-material-locally))
 * Download the book in HTML format for off-line use, with solutions and templates, from the [releases area](https://github.com/ferrous-systems/rust-exercises/releases)
 
@@ -38,11 +50,18 @@ You could use `mdbook serve` instead to start a webserver that serves up the boo
 To verify that every code example in the book compiles as expected, run:
 
 ```sh
+cd ./exercise-book
 mdbook test
 ```
 
 To verify that all the examples build, we use the top-level build script `build.sh`. Note that running that script may require a valid CriticalUp token, as we use Ferrocene in our CI.
 
+## Credits
+
+The development of this course is financed by Ferrous Systems. They are open sourced as a contribution to the growth of the Rust language.
+
+If you wish to fund further development of the course, [book a training](https://ferrous-systems.com/training)!
+
 ## License
 
 [![Creative Commons License](https://i.creativecommons.org/l/by-sa/4.0/88x31.png)](http://creativecommons.org/licenses/by-sa/4.0/)
@@ -51,4 +70,6 @@ This work is licensed under a [Creative Commons Attribution-ShareAlike 4.0 Inter
 
 We encourage the use of this material, under the terms of the above license, in the production and/or delivery of commercial or open-source Rust training programmes.
 
+We unfortunately cannot accept copyrightable contributions from third parties unless they enter into a Contributors' License Agreement with us. Please contact <[email protected]> if you would like to collaborate with us on this material.
+
 Copyright (c) Ferrous Systems, 2025