diff --git a/.obsidian/workspace.json b/.obsidian/workspace.json
index 2a0e69b..4e1027c 100644
--- a/.obsidian/workspace.json
+++ b/.obsidian/workspace.json
@@ -39,12 +39,14 @@
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+                "file": "Operating Systems/Introductory lecture.md",
+                "mode": "source",
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-              "title": "Release Notes 1.8.9"
+              "icon": "lucide-file",
+              "title": "Introductory lecture"
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@@ -228,9 +230,14 @@
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-    "Software Engineering/Reqirements.md",
     "Software Engineering/Initial Questions.md",
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+    "Functional Programming/Basic Haskell.md",
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@@ -243,16 +250,12 @@
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