reference: update statement summary docs (#1822)
reference: update statement summary docs (#1822)

* update statement summary for dev

* Update dev/reference/performance/statement-summary.md

Co-Authored-By: djshow832 <512d6181e08a31c71c82a70e6482dd60b1a573c6@qq.com>

* Update dev/reference/performance/statement-summary.md

Co-Authored-By: djshow832 <512d6181e08a31c71c82a70e6482dd60b1a573c6@qq.com>

* Update reference/performance/statement-summary.md

Co-Authored-By: TomShawn <3d0966147538bc5ab020e8dffa2c0b746f9728a6@users.noreply.github.com>

* Update reference/performance/statement-summary.md

Co-Authored-By: TomShawn <3d0966147538bc5ab020e8dffa2c0b746f9728a6@users.noreply.github.com>

* Update reference/performance/statement-summary.md

Co-Authored-By: TomShawn <3d0966147538bc5ab020e8dffa2c0b746f9728a6@users.noreply.github.com>

* Update reference/performance/statement-summary.md

Co-Authored-By: TomShawn <3d0966147538bc5ab020e8dffa2c0b746f9728a6@users.noreply.github.com>

* Update reference/performance/statement-summary.md

Co-Authored-By: TomShawn <3d0966147538bc5ab020e8dffa2c0b746f9728a6@users.noreply.github.com>

* Update reference/performance/statement-summary.md

Co-Authored-By: TomShawn <3d0966147538bc5ab020e8dffa2c0b746f9728a6@users.noreply.github.com>

* Update reference/performance/statement-summary.md

Co-Authored-By: TomShawn <3d0966147538bc5ab020e8dffa2c0b746f9728a6@users.noreply.github.com>

* Update reference/performance/statement-summary.md

Co-Authored-By: TomShawn <3d0966147538bc5ab020e8dffa2c0b746f9728a6@users.noreply.github.com>

* Update reference/performance/statement-summary.md

Co-Authored-By: TomShawn <3d0966147538bc5ab020e8dffa2c0b746f9728a6@users.noreply.github.com>

* Update reference/performance/statement-summary.md

Co-Authored-By: TomShawn <3d0966147538bc5ab020e8dffa2c0b746f9728a6@users.noreply.github.com>

* Update reference/performance/statement-summary.md

Co-Authored-By: TomShawn <3d0966147538bc5ab020e8dffa2c0b746f9728a6@users.noreply.github.com>

* update files according to comments

* Update reference/performance/statement-summary.md

Co-Authored-By: TomShawn <3d0966147538bc5ab020e8dffa2c0b746f9728a6@users.noreply.github.com>

* Update reference/performance/statement-summary.md

Co-Authored-By: TomShawn <3d0966147538bc5ab020e8dffa2c0b746f9728a6@users.noreply.github.com>

* Update reference/performance/statement-summary.md

Co-Authored-By: TomShawn <3d0966147538bc5ab020e8dffa2c0b746f9728a6@users.noreply.github.com>

* Update reference/performance/statement-summary.md

Co-Authored-By: TomShawn <3d0966147538bc5ab020e8dffa2c0b746f9728a6@users.noreply.github.com>

* Update reference/performance/statement-summary.md

Co-Authored-By: TomShawn <3d0966147538bc5ab020e8dffa2c0b746f9728a6@users.noreply.github.com>

* Update reference/performance/statement-summary.md

Co-Authored-By: TomShawn <3d0966147538bc5ab020e8dffa2c0b746f9728a6@users.noreply.github.com>

* Update reference/performance/statement-summary.md

Co-Authored-By: TomShawn <3d0966147538bc5ab020e8dffa2c0b746f9728a6@users.noreply.github.com>

* Update reference/performance/statement-summary.md

Co-Authored-By: TomShawn <3d0966147538bc5ab020e8dffa2c0b746f9728a6@users.noreply.github.com>

* Update reference/performance/statement-summary.md

Co-Authored-By: TomShawn <3d0966147538bc5ab020e8dffa2c0b746f9728a6@users.noreply.github.com>

* Update reference/performance/statement-summary.md

Co-Authored-By: TomShawn <3d0966147538bc5ab020e8dffa2c0b746f9728a6@users.noreply.github.com>

* Update reference/performance/statement-summary.md

Co-Authored-By: TomShawn <3d0966147538bc5ab020e8dffa2c0b746f9728a6@users.noreply.github.com>

* Update reference/performance/statement-summary.md

Co-Authored-By: TomShawn <3d0966147538bc5ab020e8dffa2c0b746f9728a6@users.noreply.github.com>

Co-authored-by: djshow832 <512d6181e08a31c71c82a70e6482dd60b1a573c6@qq.com>
Co-authored-by: yikeke <9eab6a9266c1a471ca02f5c04fa0a3b857620cf9@pingcap.com>
Co-authored-by: Lilian Lee <c684465c17314189c18707959627e2ec4fdec2d0@pingcap.com>
Co-authored-by: TomShawn <3d0966147538bc5ab020e8dffa2c0b746f9728a6@users.noreply.github.com>
pingcap/docs,pingcap/docs,pingcap/docs