Add "potentially out of date" messages to komga and wikijs

pages/02.linux/11.wikijs/default.en.md

@@ -3,6 +3,9 @@ title: WikiJS
 ---
 
 [toc]
+
+> I'm not using WikiJS anymore. This article might be out of date  
+
 `# apt install nginx podman nodejs` 
 ## Preparation
 Create a new network for the database and wikijs  

pages/02.linux/17.komga/default.en.md

@@ -3,6 +3,9 @@ title: Komga
 ---
 
 [toc]
+
+> I'm not using Komga anymore. This article might be out of date  
+
 ## Create directories
 `# mkdir -p /var/komga/{config,content}`  
 `# mkdir -p /var/komga/content/{manga,books,tech}`