Add image source

Author: redfast00

content/posts/0011-mesh-networking.md

@@ -100,3 +100,6 @@ Still to implement:
 - Beacon timing adjustment
 
 There is still a lot of work to be done before mesh networking fully works. I believe that most of this work can be done without additional hardware reverse engineering; so if you like writing no-std, embedded async Rust, like reading a 7000 page standard, and are up for a challenge, feel free [to join the effort](https://matrix.to/#/#esp32-open-mac:matrix.org). 
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+*All images used are from Espressifs documentation and licensed under Apache 2.0, see [here](https://docs.espressif.com/projects/esp-idf/en/stable/esp32/api-guides/esp-wifi-mesh.html) and [here](https://github.com/espressif/esp-mesh-lite/blob/release/v1.0/components/mesh_lite/User_Guide.md)*