Updated document formatting to match preferred Markdown style
Added .gitignore file to exclude HTML files that may be created during development
Normalized file naming conventions
Updated README for SecondConf
Updated Code of Conduct for SecondConf

- Replaced references to PyCon with SecondConf
- Removed references to an exhibit hall and vendor booths
- Updated contact names and phone numbers for SecondConf
Updated attendee procedure for incident handling

- Changed PyCon to SecondConf
- Removed mention of STAFF t-shirt button, added lanyard
- Changed contact information for SecondConf
- Changed mentions of "hotel" to "venue"
Updated staff procedure for incident handling

- Removed mention of badge number, added Twitter handle
- Changed PyCon to SecondConf
- Changed contact information for SecondConf