Update src/6_eigenvectors_QM.md

src/6_eigenvectors_QM.md

@@ -106,7 +106,7 @@ $$
 \end{array}
 $$
 
-!!! check "Example":
+!!! check "Example"
     Let us illustrate how to compute eigenvalues and eigenvectors by considering a $n=2$ vector space. Consider the following matrix
     $$
     A = \left( \begin{array}{cc} 1  &  2 \\ -1  &  4 \end{array} \right) \, ,
@@ -138,7 +138,7 @@ $$
     as we wanted to demonstrate.
 
 !!! note "Exercise"
-    As an exercise, you can try to obtain the expression of the eigenvector
+    As an exercise, try to obtain the expression of the eigenvector
     corresponding to the second eigenvalue $\lambda_2=2$.