Add Saish Wadnere to developer directory

Author: SaishWadnere

src/users/saishwadnere.yaml

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+name: Saish Milind Wadnere
+github: SaishWadnere
+email: saishwadnere3@gmail.com
+instagram: https://www.instagram.com/saish_wadnere/
+twitter: https://x.com/saishwadnere
+linkedin: https://www.linkedin.com/in/saish-wadnere/
+country: India
+location: Nashik
+role: Student
+languages: Java JavaScript React HTML CSS
+bio: |
+  Student studying at Sandip Institute of Technology and Research Centre.
+  Interested in Backend and Cloud. Building real systems. Mastery in React and CSS.