Fix link to section in README

It seems to be case sensitive, change tableName -> tablename.
Fix couple cosmetic typos
Fix couple misleading test failure messages
Merge pull request #165 from rtfb/typos

Various typo fixes
Extract method FieldByName
Update README
Export method ToSnake and SnakeToUpperCamel
Add basic support for DEFAULT values
Simplify set field value
Merge pull request #170 from chr4/master

Add basic support for DEFAULT values
Support inline condition when Delete
Fix typo
Refact untils.go
Fix check HasColumn for sqlite3
Fix check HasColumn for sqlite3
Refact tests
Fix remove index for sqlite and postgres
Refact tests
Refact tests
Write stub code for Many2Many