[docs] mention of HALO before defining it #158
Description
https://develop.capy.cpp.al/capy/4.coroutines/4a.tasks.html
Key characteristics:
[...]
HALO support — Enables heap allocation elision when possible
When I first read the docs, I had to gargle HALO to understand what it was in this context. Gargle said:
In C++, "halo" usually refers to a halo layer or ghost cells in parallel computing (using MPI) or, less commonly, a compiler optimization (HALO - Heap Allocation Elision Optimization).
For ordinary citizen C++ programmers, I think this should be explained before used in this section, or at least a link around the acronym to some place in boost (or the standard) that already explains it. A footnote explanation should probably be sufficient.