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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Open README.md and review each listed code example against the API names and intended SQL shown in the issue. Correct the typos, punctuation, call syntax, literals, and delete example identified there. Done means all listed snippets match the library API and their displayed SQL.

Scritto dal modello di indicizzazione a partire dal testo della issue.