Updating exercise's serial number

Helps to keep track of the flow.
2022-07-12 22:41:12 +05:30 · 2022-07-12 22:41:12 +05:30 · 9eae91f0e2
parent e9f3b398c5
commit 9eae91f0e2
1 changed files with 1 additions and 1 deletions
--- a/en/src/variables.md
+++ b/en/src/variables.md
@ -99,7 +99,7 @@ fn main() {
 ```

 ### Unused variables
-1. Fix the warning below with :
+7. Fix the warning below with :

 - 🌟  Only one solution
 - 🌟🌟  Two distinct solutions