Merge pull request #103 from Quantum-Software-Development/FabianaCampanari-patch-1

Update README.md

Author: FabianaCampanari

README.md

@@ -28,10 +28,10 @@ Feel free to explore, contribute, and share your insights!
 
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-## [Timeline of Quantum Computing](): Scientists and Contributions
+# [Timeline of Quantum Computing](): Scientists and Contributions
 
 
-### Early 20th Century – Foundations of Quantum Mechanics
+## Early 20th Century – Foundations of Quantum Mechanics
 
 1. **Max Planck (1900)**
    * Founder of quantum theory by introducing the concept of energy quantization.
@@ -76,6 +76,12 @@ Feel free to explore, contribute, and share your insights!
 
 <br>
 
+## Mid-20th Century – Foundations for Quantum Information
+
+1. **John von Neumann (1932)**
+   * Formalized the mathematical framework of quantum mechanics and introduced operator theory.
+
+
 
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