Add birmingHack stuff

Author: LMBishop

README.md

@@ -151,6 +151,10 @@ N.B.: The die-cut dimensions include the white border around the graphic. So the
 [speech-tex-svg]: dinosaur/tex_speech.svg
 [ballot-tex-svg]: dinosaur/tex_ballot.svg
 
+## birmingHack
+
+See [birminghack/README.md].
+
 ## Roller Banner
 
 The two roller banners were printed in 2019 via [digitalprinting.co.uk](https://digitalprinting.co.uk) and were the _'Gold' Roll Up Stands_, using the files in [`roller-banner/`](roller-banner), following the [design tips](https://www.digitalprinting.co.uk/media/hints/76/gold-roll-up-stand-1.pdf) provided by the printing company.

birminghack/README.md

@@ -0,0 +1,31 @@
+# birmingHack branding
+
+This directory contains files related to birmingHack.
+
+<img src="birminghack-hex.png" alt="birmingHack hex" width="100" />
+
+## Colours
+
+| Description | Hex Code  | Usage                                          |
+| ----------- | --------- | ---------------------------------------------- |
+| Primary     | `#50C878` | -                                              |
+| Alternate   | `#359F58` | For higher contrast with white (e.g. printing) |
+| Background  | `#191716` | -                                              |
+
+## Logos
+
+Available in various forms as `birminghack-logo-ras-*.png` and `birminghack-logo-vec-*.svg`.
+
+N.b. `birminghack-logo-vec-fontsafe.svg` differs from `birminghack-logo-vec.svg` as it
+has SVG text converted to paths, for systems which do not have the font installed.
+
+## Fonts
+
+There are two fonts used:
+
+* **Iosevka SS08**: primary text (logo, headers, etc.)
+* **Inter**: body text (long descriptions, paragraphs)
+
+## Stickers
+
+In the `stickers` directory.