README — code examples contain mistakes

README: fix API typos and incorrect examples
- Component: `README.md`

### Problems (examples)
- `.innerJoin` (should be `.InnerJoin`).
- Missing comma: `.AddWhere "u.favorite" "c.name"`.
- Assignment instead of call: `.AddHaving = "age", "1", ">"` → `.AddHaving "age", 1, ">"`.
- `Ceate_SQLSelect` → `Create_SQLSelect`; literals inconsistent with shown SQL.
- Delete example uses `With MyUpdate` instead of `With MyDelete`.

### Proposed Fix
- Correct the snippets to match the library’s API and intended SQL.

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