Added sample questions format

QUESTIONS.md

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+Sample questions format
+=======================
+
+1. Short Intro, work, early experience, etc.
+
+2. Experiences with Ruby, what currently interests you/ you work on.
+
+3. Experiences with Ruby Community in your city/area.
+
+4. How you got involved with your company.
+
+5. Experiences with Community events, and why these events.
+
+6. Work on OSS projects.
+
+7. Your setup/ tools you used.
+
+8. What tools does your Company use for things like - Communication,
+   Workflow, etc and your thoughts on them.
+
+9. Questions from Twitter.
+
+
+#### Note
+
+The order is not important. But interview will be based on above
+format with some impromptu questions.