…nts (#7939)

Co-authored-by: Sebastian "Sebbie" Silbermann <silbermann.sebastian@gmail.com>

Co-authored-by: Aimen Ben Amor <aimen_ben_amor@epam.com>

* Add CityJS New Delhi 2026 conference details

* Update CityJS New Delhi date to 2025

The previous sentence "If you are using React Compiler, useMemo, useCallback, and React.memo can be removed." was coming off a bit too strong and makes it incorrectly seem like the manual memos and compiler memos are 1:1.

Removing the sentence doesn't take anything away from this paragraph, so let's remove it to reduce confusion.

Updates our previous RC blogpost to point people to the `rc` tag, not the specific rc version

The compiler rule is now enabled by default in 6.0.0-rc.2, so there is no longer a need to manually enable the compiler rule in user's eslint configs.

Co-authored-by: unknown <deepanshu.9dd@gmail.com~>

`a expensive` should be `an expensive`

Fix "documentatino" typo to "documentation" in comment about useOptimistic reference page.

…d example of the use API (#7767)

* Update "Deep Dive" in reusing-logic-with-custom-hooks.md with link to and example of the use API

* Remove mention of Server Components when explaining the use API

* Update src/content/learn/reusing-logic-with-custom-hooks.md

Co-authored-by: Ricky <rickhanlonii@gmail.com>

* fix: Correct which lines are highlighted in code example

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Co-authored-by: Ricky <rickhanlonii@gmail.com>

The previous examples used a service called loremflickr.com to link to  placeholder images. Since that service is now down, I updated them to reference placecats.com instead, which we already use in other examples as well. placecats doesn't have the same random cat feature so I roughly approximated it in the example code.

Closes #7966

* Fix handleClick compiler intro example

* Use a note instead

* Update src/content/learn/react-compiler/introduction.md

* fix: changed source file names in docs from App.js, index.js and styles.css to src/ dir

* fix: updated wrong image with the correct one with current sandbox file structure

* refactor: reverted all formatting and just just mention src folder in introductory section

* Reverted changes tutorial-tic-tac-toe.md

* added enhanced image of sandbox