[roll third_party/pigweed] pw_sync: Add ThreadNotification note in docs

Adds blurb for the ThreadNotification to make it more obvious that
unlike some native RTOS APIs such as direct task signaling, multiple
ThreadNotifications may be used by a single thread.

Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/58140

https://pigweed.googlesource.com/pigweed/pigweed
third_party/pigweed Rolled-Commits: 7f8941f1ebcabac..0bf9625e78643ef
Roller-URL: https://ci.chromium.org/b/8837981703124484817
Cq-Cl-Tag: roller-builder:pigweed-experimental-roller
Cq-Cl-Tag: roller-bid:8837981703124484817
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: Id4da12cca81925885e3b3f15ca1fb057d44b8c34
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/experimental/+/58183
Bot-Commit: Pigweed Integration Roller <pigweed-integration-roller@pigweed.google.com.iam.gserviceaccount.com>
Commit-Queue: Pigweed Integration Roller <pigweed-integration-roller@pigweed.google.com.iam.gserviceaccount.com>
1 file changed
tree: 14f808a8d09cd54fe5a95e3ab478576078064dcc
  1. applications/
  2. build_overrides/
  3. pw_board_led/
  4. pw_board_led_arduino/
  5. pw_board_led_host/
  6. pw_board_led_stm32cube/
  7. pw_board_led_stm32f429i_disc1/
  8. pw_spin_delay/
  9. pw_spin_delay_arduino/
  10. pw_spin_delay_host/
  11. pw_spin_delay_stm32cube/
  12. pw_spin_delay_stm32f429i_disc1/
  13. pw_sys_io_stm32cube/
  14. targets/
  15. third_party/
  16. tools/
  17. .gitattributes
  18. .gitignore
  19. .gitmodules
  20. .gn
  21. activate.bat
  22. banner.txt
  23. bootstrap.bat
  24. bootstrap.sh
  25. BUILD.gn
  26. BUILDCONFIG.gn
  27. env_setup.json
  28. navbar.md
  29. PW_PLUGINS
  30. README.md
README.md

Pigweed Experimental

This repository contains experimental pigweed modules.

Repository setup

Clone this repo with --recursive to get all required submodules.

git clone --recursive https://pigweed.googlesource.com/pigweed/experimental

This will pull the Pigweed source repository into third_party/pigweed. If you already cloned but forgot to --recursive run git submodule update --init to pull all submodules.