- Relocate docs/blog/immutability_performance.md to docs/src/book/blog/
- Comprehensive guide on immutable material models with Tensors.jl
- Covers LinearElastic, NeoHookean, PerfectPlasticity implementations
- Includes full benchmarks: 5× speedup for linear, 21× for plasticity
- Zero allocation performance validated
- Part of three-tier docs reorganization under standard docs/src/ structure
Jukka Aho