Fix typos <noupdate>

src/fundamentals-of-ai-and-kr/module3/sections/_intro.tex

@@ -4,11 +4,11 @@
 \section{Uncertainty}
 \begin{description}
     \item[Uncertainty] \marginnote{Uncertainty}
-        A task is uncertain if we have:
+        A task is uncertain if it has:
         \begin{itemize}
             \item Partial observations
             \item Noisy or wrong information
-            \item Uncertain action outcomes
+            \item Uncertain outcomes of the actions
             \item Complex models
         \end{itemize}