Restructure README with personal learning journey and create automated notes system

src/notes/1820_maximum_number_of_accepted_invitations.md

@@ -0,0 +1,22 @@
+# Maximum Number of Accepted Invitations
+
+**Problem Number:** 1820
+**Difficulty:** Medium
+**Category:** 
+
+## Problem Description
+
+## My Approach
+
+## Solution
+
+## Time & Space Complexity
+
+## Key Insights
+
+## Mistakes Made
+
+## Related Problems
+
+---
+*Note: This is a work in progress. I'll add more details as I reflect on this problem.*