website: Add "contribute" page.

* website/contribute.md: New file.
* website/haunt.scm (static-pages): Add it.
* website/index.md: Link to it.

1 files changed, 19 insertions, 0 deletions

diff --git a/contribute.md b/contribute.md
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index 0000000..a0544d8
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+++ b/contribute.md
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+title: Contribute
+author: The GNU Assembly
+---
+
+If you are the maintainer or contributor to a GNU package sharing the
+same vision as we do, we’d love yo have you on board!  The steps to join
+the Assembly are as follows:
+
+  1. Read the [Social Contract](/en/documents/social-contract) and email
+     `social-contract@gnu.tools` to explicitly endorse it.  Endorsement
+     allows us to make sure we’re all on the same page, following the
+     same goals.
+  2. Subscribe to [the Assembly mailing
+     list](https://lists.gnu.tools/hyperkitty/list/assembly@lists.gnu.tools/)
+     and check out the [code of conduct](/en/documents/code-of-conduct)
+     that applies.
+  3. There is no third step.
+  
+Let’s connect the software packages and the people behind them!