Update src/8_many_atoms_sol.md, AUTHORS.md files

Deleted 8_many_atoms_sol.md

8_many_atoms_sol.md

-```{python initialize=true}
-import matplotlib
-from matplotlib import pyplot
-
-import numpy as np
-
-from common import draw_classic_axes, configure_plotting
-
-configure_plotting()
-
-pi = np.pi
-```
-
-# Solutions for lecture 7 exercises
-
-## Exercise 1: analyzing the diatomic vibrating chain
-
-### Subquestion 1
-
-

AUTHORS.md

@@ -9,6 +9,7 @@ The following people contributed to making of these lecture notes:
 * Sander Otte
 * Sathish Kumar RK
 * Toeno van der Sar
+* Lars kleyn Winkel
 
 <!--
 Execute

src/8_many_atoms_sol.md

@@ -11,11 +11,11 @@ configure_plotting()
 pi = np.pi
 ```
 
-# Solutions for lecture 7 exercises
+# Solutions for lecture 8 exercises
 
 ## Exercise 1: analyzing the diatomic vibrating chain
 
 ### Subquestion 1
 
 
-8_many_atoms_sol.md
\ No newline at end of file
+8_many_atoms_sol.md