Update content/architecture.md

Co-authored-by: Matthias Aßhauer <[email protected]>

Author: dscho

content/architecture.md

@@ -21,7 +21,7 @@ digraph GitGitGadgetFlow {
 
   GitGitGadget [label="GitGitGadget", fillcolor="#ffffff"];
 
-  user -> pr_repo [taillabel=" opens PR"];
+  user -> pr_repo [label=" opens PR"];
 
   pr_repo -> GitGitGadget [label="slash commands"];