diff --git a/README.md b/README.md
index 8e6f70f..698bf6a 100644
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@@ -40,30 +40,30 @@ I. [Predecessors of Quantum Mechanics – Key Mathematicians and Their Contribut
    5. [Satyendra Nath Bose (1924)](#satyendra-nath-bose-1924)  
 
 II. [Early 20th Century – Foundations of Quantum Mechanics](#early-20th-century-foundations-of-quantum-mechanics)  
-   6. [Max Planck (1900)](#max-planck-1900)  
-   7. [Albert Einstein (1905)](#albert-einstein-1905)  
-   8. [Niels Bohr (1913)](#niels-bohr-1913)  
-   9. [Erwin Schrödinger (1926)](#erwin-schroedinger-1926)  
-   10. [Werner Heisenberg (1927)](#werner-heisenberg-1927)  
-   11. [Paul Dirac (1928)](#paul-dirac-1928)  
+    6. [Max Planck (1900)](#max-planck-1900)  
+    7. [Albert Einstein (1905)](#albert-einstein-1905)  
+    8. [Niels Bohr (1913)](#niels-bohr-1913)  
+    9. [Erwin Schrödinger (1926)](#erwin-schroedinger-1926)  
+    10. [Werner Heisenberg (1927)](#werner-heisenberg-1927)  
+    11. [Paul Dirac (1928)](#paul-dirac-1928)  
 
 III. [Mid-20th Century – Foundation for Quantum Information](#mid-20th-century-foundation-for-quantum-information)  
-   12. [John von Neumann (1932)](#john-von-neumann-1932)  
-   13. [Claude Shannon (1948)](#claude-shannon-1948)  
-   14. [John S. Bell (1964)](#john-s-bell-1964)  
-   15. [Stephen Wiesner (1970)](#stephen-wiesner-1970)  
-   16. [Richard Feynman (1981)](#richard-feynman-1981)  
-   17. [Gilles Brassard (1984)](#gilles-brassard-1984)  
-   18. [David Deutsch (1985)](#david-deutsch-1985)  
+     12. [John von Neumann (1932)](#john-von-neumann-1932)  
+     13. [Claude Shannon (1948)](#claude-shannon-1948)  
+     14. [John S. Bell (1964)](#john-s-bell-1964)  
+     15. [Stephen Wiesner (1970)](#stephen-wiesner-1970)  
+     16. [Richard Feynman (1981)](#richard-feynman-1981)  
+     17. [Gilles Brassard (1984)](#gilles-brassard-1984)  
+     18. [David Deutsch (1985)](#david-deutsch-1985)  
 
 IV. [1990s and 2000s – Consolidation of Quantum Computing](#1990s-and-2000s-consolidation-of-quantum-computing)  
-   19. [Artur Ekert (1991)](#artur-ekert-1991)  
-   20. [Charles Bennett (1993)](#charles-bennett-1993)  
-   21. [Peter Shor (1994)](#peter-shor-1994)  
-   22. [Lov Grover (1996)](#lov-grover-1996)  
-   23. [Seth Lloyd (1996)](#seth-lloyd-1996)  
-   24. [Alexei Kitaev (1997)](#alexei-kitaev-1997)  
-   25. [William Wootters (1998)](#william-wootters-1998)  
+    19. [Artur Ekert (1991)](#artur-ekert-1991)  
+    20. [Charles Bennett (1993)](#charles-bennett-1993)  
+    21. [Peter Shor (1994)](#peter-shor-1994)  
+    22. [Lov Grover (1996)](#lov-grover-1996)  
+    23. [Seth Lloyd (1996)](#seth-lloyd-1996)  
+    24. [Alexei Kitaev (1997)](#alexei-kitaev-1997)  
+    25. [William Wootters (1998)](#william-wootters-1998)  
 
 V. [2010s and 2020s – The Era of Practical Quantum Computing](#2010s-and-2020s-the-era-of-practical-quantum-computing)  
    26. [Scott Aaronson (2010–present)](#scott-aaronson-2010-present)  
@@ -72,20 +72,20 @@ V. [2010s and 2020s – The Era of Practical Quantum Computing](#2010s-and-2020s
    29. [Anton Zeilinger (2022)](#anton-zeilinger-2022)  
 
 VI. [Current Scientists – Pioneers of Modern Quantum Computing](#current-scientists-pioneers-of-modern-quantum-computing)  
-   30. [Umesh Vazirani (present)](#umesh-vazirani-present)  
-   31. [Michelle Simmons (present)](#michelle-simmons-present)  
-   32. [Guglielmo Mazzola (2020–present)](#guglielmo-mazzola-2020-present)  
+    30. [Umesh Vazirani (present)](#umesh-vazirani-present)  
+    31. [Michelle Simmons (present)](#michelle-simmons-present)  
+    32. [Guglielmo Mazzola (2020–present)](#guglielmo-mazzola-2020-present)  
 
 VII. [Key Concepts and Formulas in Quantum Computing](#key-concepts-and-formulas-in-quantum-computing)  
-   1. [Superposition](#superposition)  
-   2. [Entanglement](#entanglement)  
-   3. [Quantum Gates](#quantum-gates)  
-   4. [Quantum Measurement](#quantum-measurement)  
+     1. [Superposition](#superposition)  
+     2. [Entanglement](#entanglement)  
+     3. [Quantum Gates](#quantum-gates)  
+     4. [Quantum Measurement](#quantum-measurement)  
 
 VIII. [Additional Relevant Concepts in Quantum Computing](#additional-relevant-concepts-in-quantum-computing)  
-   1. [Quantum Interference](#quantum-interference)  
-   2. [Quantum Decoherence](#quantum-decoherence)  
-   3. [Multiple Quantum States (Qutrits and Qudits)](#multiple-quantum-states-qutrits-and-qudits)  
+      1. [Quantum Interference](#quantum-interference)  
+      2. [Quantum Decoherence](#quantum-decoherence)  
+      3. [Multiple Quantum States (Qutrits and Qudits)](#multiple-quantum-states-qutrits-and-qudits)