add Level 8

l8/5_solution.sh

@@ -0,0 +1,8 @@
+#!/bin/bash
+git branch DEV origin/DEV
+git switch DEV
+git rebase origin/master
+cat translations.txt | grep -ve "[<>=]" > $$.dat
+mv $$.dat translations.txt
+git add translations.txt
+git rebase --continue