Cspdk

- add docstrings [54](https://github.com/gdsfactory/cspdk/pull/54)
- cspdk cleanup [51](https://github.com/gdsfactory/cspdk/pull/51)

- update gdsfactory to 8.4.0 [50](https://github.com/gdsfactory/cspdk/pull/50)

- fix tests [47](https://github.com/gdsfactory/cspdk/pull/47)
- update gdsfactory to 8.3.0 [48](https://github.com/gdsfactory/cspdk/pull/48)

- Gdsfactory8 [43](https://github.com/gdsfactory/cspdk/pull/43)
- add gplugins to pyproject [46](https://github.com/gdsfactory/cspdk/pull/46)
- Fixes remove partials [45](https://github.com/gdsfactory/cspdk/pull/45)
- fixing tech installation on windows [35](https://github.com/gdsfactory/cspdk/pull/35)
- better values for cross_section [39](https://github.com/gdsfactory/cspdk/pull/39)
- use approx version [37](https://github.com/gdsfactory/cspdk/pull/37)
- update gdsfactory [34](https://github.com/gdsfactory/cspdk/pull/34)

- add si500nm pdk [32](https://github.com/gdsfactory/cspdk/pull/32)
- Add logo [28](https://github.com/gdsfactory/cspdk/pull/28)
- better docs [31](https://github.com/gdsfactory/cspdk/pull/31)
- make CORNERSTONE package support all the different pdks [29](https://github.com/gdsfactory/cspdk/pull/29)
- update gplugins [27](https://github.com/gdsfactory/cspdk/pull/27)
- Better docs [24](https://github.com/gdsfactory/cspdk/pull/24)
- simplify routing [22](https://github.com/gdsfactory/cspdk/pull/22)
- update gdsfactory and gplugins [21](https://github.com/gdsfactory/cspdk/pull/21)
- Improve models [16](https://github.com/gdsfactory/cspdk/pull/16)

- Update gdsfactory [15](https://github.com/gdsfactory/cspdk/pull/15)
- Add routing strategies for specific cross sections [14](https://github.com/gdsfactory/cspdk/pull/14)