added personal files

these files might contain private information, such as git forges' URL
or which gpg key I use for specific repos.
Basically, you would only need them if you were me.

.gitattributes

@@ -0,0 +1,3 @@
+personal_config filter=git-crypt diff=git-crypt
+ssh_allowed_signers filter=git-crypt diff=git-crypt
+

config

@@ -1,3 +1,11 @@
+# Some files are only relevent to me, and might contain private information
+# (git forge URLs, which gpg keys to use, ...). They are encrypted using
+# git-crypt to be extra safe.
+# All of them are included under the file below so, if you wish to reuse my
+# config, you'll need to delete that setting. Otherwise git will complain.
+[include]
+    path = personal_config
+
 [core]
     editor = nvim
 
@@ -6,6 +14,7 @@
 
 [commit]
     gpgsign = true
+
 [filter "lfs"]
     required = true
     clean = git-lfs clean -- %f