Update week15.do.txt

Author: mhjensen

doc/src/week15/week15.do.txt

@@ -7,7 +7,7 @@ DATE: May 7, 2025
 ===== Plan for the week of May 5-9 =====
 !bblock
 o Discussion of Quantum Support Vector Machines and their implementations
-o Encoding of data and parametrized quantum circuits
+o Encoding of data and parametrized quantum circuits (PQC)
 o Variational Quantum Circuits (VQCs) 
 o Quantum neural networks (QNNs)
   * Training QNNs and Loss Landscapes