uv

315fc179 - Update documentation for activating virtual environments in different shell (#11000)

Update documentation for activating virtual environments in different shell (#11000) ## Add activation commands for fish shell and other alternative shells While trying to use uv with fish shell, I encountered an issue as `source .venv/bin/activate` didn't work. The documentation didn't specify that fish shell requires using `source .venv/bin/activate.fish` instead. I created issue #10986 to address this. This PR improves the documentation by: - Adding the correct activation command for fish shell: `source .venv/bin/activate.fish` - Adding the correct activation command for Nushell: `use .venv\Scripts\activate.nu` - Adding the correct activation command for Tcsh: `use .venv/bin/activate.csh` This will help users of alternative shells to properly activate their virtual environments without encountering the same confusion I experienced. Fixes #10986 --------- Co-authored-by: Zanie Blue <contact@zanie.dev>