Redo git-related instructions for clarity

Amolith created

Change summary

README.md | 18 ++++++++----------
1 file changed, 8 insertions(+), 10 deletions(-)

Detailed changes

README.md 🔗

@@ -149,6 +149,11 @@ they're listed in order of Amolith's preference:
     web UI, which requires a SourceHut account.
   - **Open source:** SourceHut components are licenced under AGPL, BSD, and
     possibly others.
+  - Configuring git for `git send-email`
+    ``` shell
+git config sendemail.to "~amolith/willow@lists.sr.ht"
+git config format.subjectPrefix "PATCH willow"
+    ```
 - [Radicle]
   - **Distributed:** contributions are through the [Heartwood protocol], which
     requires you to at least set up a local Radicle node.
@@ -190,17 +195,10 @@ _If you haven't used mailing lists before, please take a look at [SourceHut's
 documentation](https://man.sr.ht/lists.sr.ht/), especially the etiquette
 section._
 
-### Configuring git...
-
-…for <code>git send-email</code>
-
-``` shell
-git config sendemail.to "~amolith/willow@lists.sr.ht"
-git config format.subjectPrefix "PATCH willow"
-git send-email [HASH]
-```
+### Before committing anything...
 
-…for signing the [DCO]
+Please make sure you configure git to sign [the DCO] in each commit. We won't
+accept contributions without DCO signatures.
 
 ``` shell
 git config format.signOff yes