Fixed the empty solution file

Session 1/Solution.md

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+# Task 1 Solution
+
+1. `mkdir Sara`
+
+2. `touch one.txt two.txt three.txt four.txt`
+
+3. `mkdir BAD`
+
+    `touch bad.txt`
+
+4. `mv one.txt /home/user/downloads`
+
+5. `cd /home/user/Downloads (optional)`
+
+    `cp one.txt copy.txt`
+
+6. `cd -`
+
+7. `nano two.txt`
+
+8. `echo given text >> three.txt`
+
+9. `mv three.txt hello.txt`
+
+10. `rm four.txt`
+
+11. `rm -r  BAD`