added sonic resource and modified definition slide

Sections/1-Introduction.tex

@@ -30,8 +30,8 @@
 \begin{frame}[fragile]
 \frametitle{Generative AI - definition}
     \begin{itemize}
-        \item LLM Generation
-        \item Results seems satisfying
+        \item LLM = A large language model (LLM) is a language model notable for its ability to achieve general-purpose language generation and other natural language processing tasks such as classification.   \textit{Wikipedia}
+        \item Generative = Generate new outputs not in the training set
     \end{itemize}
 \end{frame}