users: Add SeongJae Park

Signed-off-by: SeongJae Park <sj@kernel.org>
diff --git a/users/sj.yaml b/users/sj.yaml
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index 0000000..fe7a5e4
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+++ b/users/sj.yaml
@@ -0,0 +1,10 @@
+name: 'SeongJae Park'
+email: 'sj@kernel.org'
+key: '4040912F'
+locations:
+    Dresden:
+        latlong: 51.0493286,13.7381437
+        description: >
+            I work from home, but if necessary I can easily make a trip
+            downtown for keysigning. Just give me a couple of days of advance
+            notice.