Add BTC donation address

README.md

@@ -33,6 +33,13 @@ However, please do not donate unless you are in a stable financial situation.
 [Signature](crypto/xmr.asc.txt)
 </details>
 
+<details>
+<summary>Bitcoin (BTC)</summary>
+bc1qynyu34ttwhthm5mjc7tck75wenvthj6stjuz96
+
+[Signature](crypto/btc.asc.txt)
+</details>
+
 ## PGP keys
 
 - [gravel's PGP root key](pgp/gravel.asc)
@@ -49,4 +56,5 @@ Fingerprint: ce0c f8c2 79ff 86e3 6274 d4c2 c053 8f3c 906b 308f
 curl -s https://codeberg.org/gravel/gravel/raw/branch/main/pgp/{gravel,gravel-commits}.asc | gpg --import
 git log --show-signature
 curl -s https://codeberg.org/gravel/gravel/raw/branch/main/crypto/xmr.asc.txt | gpg --verify
+curl -s https://codeberg.org/gravel/gravel/raw/branch/main/crypto/btc.asc.txt | gpg --verify
 ```

crypto/btc.asc.txt

@@ -0,0 +1,23 @@
+-----BEGIN PGP SIGNED MESSAGE-----
+Hash: SHA256
+
+My Bitcoin donation address:
+
+bc1qynyu34ttwhthm5mjc7tck75wenvthj6stjuz96
+
+— @gravel (Session user)
+
+-----BEGIN PGP SIGNATURE-----
+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+=PsOj
+-----END PGP SIGNATURE-----