Fix errors in Nikita-kumari.md

[Nikita-kumari]

please check it

[tasnimzotder]

hey @Nikita-kumari, you're giving a good effort. But there is a slight error in the codes. Just do the following steps -

1. Open the file _hackbars/Nikita-kumari.md
2. Remove all the codes in that file.
3. Paste the following codes -

   
   ---
   layouts: hackbar
   title: hacktoberfest
   author: Nikita kumari
   ---

"Hacktoberfest is a promotion that Digital Ocean runs to encourage developers to contribute patches to open-source..."

---

Climate change will impact the lives of future generations...

4. Commit the changes
5. Open a pull request
6. 🎉🎉 Done