docs: minor notes about syncs and releases (#409)

Author: daquinteroflex

README.md

@@ -6,6 +6,11 @@ You can see our [pretty example library documentation](https://docs.flexcompute.
 
 - Make sure all your internal API references start with ``tidy3d.<your_reference>``
 - In notebooks, always have absolute links, otherwise the links will break when the user downloads them.
+- The `develop` branch is syced to the state of the webcenter in order to enable new notebooks to be featured quickly. 
+- If you are developing a notebook using a version that is not the latest official version (i.e. 2.9.1 vs the python client `develop` branch) make sure to merge it only after the python client has been released. Or use a `pre/2.10` branch.
+
+These instructions are valid as of Nov 2025, but may change depending on structural planned changes and you can verify with the team.
+
 
 ## Common Documentation References
 
@@ -23,4 +28,4 @@ You can see our [pretty example library documentation](https://docs.flexcompute.
 |--------------------|-------------------------------------------------|
 | Source Code        | https://github.com/flexcompute/tidy3d           |
 | Example Notebooks  | https://github.com/flexcompute/tidy3d-notebooks |
-| FAQ Source Code    | https://github.com/flexcompute/tidy3d-faq       |
+| FAQ Source Code    | https://github.com/flexcompute/tidy3d-faq       |