Update 18_superDrEvalBros.md
Create 09_fordingTheRiver.md
Merge pull request #181 from gipnokote/patch-1

Update 18_superDrEvalBros.md
Merge pull request #182 from gipnokote/patch-2

Create 09_fordingTheRiver.md
Add another solution to level 9
Merge pull request #186 from JustBlackBird/lvl9_solution

Add another solution to level 9