Fix
* **test_interpolate:** Ensure interpolation nodes generally not becoming too small around zero ([`b2bec0d`](https://github.com/PTB-M4D/PyDynamic/commit/b2bec0d3852f2fd8b103f14fd72611414001a4cc))
Documentation
* **module diagram:** Update module diagram to reflect signals.py module character to resolve 266 ([`f49a679`](https://github.com/PTB-M4D/PyDynamic/commit/f49a679a67c092ef0c00de608e00ea9fa2df2e0a))
* **module diagram:** Update module diagram with signals.py to resolve 266 ([`aa80faa`](https://github.com/PTB-M4D/PyDynamic/commit/aa80faaff6cefd7c7d196ac35573949ed03781aa))
**[See all commits in this version](https://github.com/PTB-M4D/PyDynamic/compare/v2.3.0...v2.3.1)**