Convenience config for several popular GitLab instances

Author: hickford

docs/gitlab.md

@@ -21,6 +21,30 @@ To use on another instance, eg. `https://gitlab.example.com` requires setup and
     git config --global --unset-all credential.https://gitlab.example.com.provider
 ```
 
+### Config for popular instances
+
+For convenience, here is config for several popular GitLab instances:
+
+```console
+# https://gitlab.freedesktop.org/
+git config --global credential.https://gitlab.freedesktop.org.gitlabdevclientid 6503d8c5a27187628440d44e0352833a2b49bce540c546c22a3378c8f5b74d45
+git config --global credential.https://gitlab.freedesktop.org.gitlabdevclientsecret 2ae9343a034ff1baadaef1e7ce3197776b00746a02ddf0323bb34aca8bff6dc1
+# https://gitlab.gnome.org/
+git config --global credential.https://gitlab.gnome.org.gitlabdevclientid adf21361d32eddc87bf6baf8366f242dfe07a7d4335b46e8e101303364ccc470
+git config --global credential.https://gitlab.gnome.org.gitlabdevclientsecret cdca4678f64e5b0be9febc0d5e7aab0d81d27696d7adb1cf8022ccefd0a58fc0
+# https://salsa.debian.org/
+git config --global credential.https://salsa.debian.org.gitlabdevclientid 213f5fd32c6a14a0328048c0a77cc12c19138cc165ab957fb83d0add74656f89
+git config --global credential.https://salsa.debian.org.gitlabdevclientsecret 3616b974b59451ecf553f951cb7b8e6e3c91c6d84dd3247dcb0183dac93c2a26
+# https://gitlab.haskell.org/
+git config --global credential.https://gitlab.haskell.org.gitlabdevclientid 57de5eaab72b3dc447fca8c19cea39527a08e82da5377c2d10a8ebb30b08fa5f
+git config --global credential.https://gitlab.haskell.org.gitlabdevclientsecret 5170a480da8fb7341e0daac94223d4fff549c702efb2f8873d950bb2b88e434f
+# https://code.videolan.org/
+git config --global credential.https://code.videolan.org.gitlabdevclientid f35c379241cc20bf9dffecb47990491b62757db4fb96080cddf2461eacb40375
+git config --global credential.https://code.videolan.org.gitlabdevclientsecret 631558ec973c5ef65b78db9f41103f8247dc68d979c86f051c0fe4389e1995e8
+```
+
+See also [issue #677](https://github.com/GitCredentialManager/git-credential-manager/issues/677).
+
 ## Preferences
 
 ```console