* Added that HEX_AXIS will create n-cubes
* Fixed minor typo

Dev tutorials

Minor changes

0.15

Documentation comments still pending to be adapted.

…p#master

* Updated Manifest, among other, to point to Gridap#master

fixing typos

Included InteractiveUtils

Adding .vscode to .gitignore

 Conflicts:
	Project.toml

"One can use a number of integration points different from the number
of shape functions. It will help to see which is the axis for points
and which for local dofs."

"
Keep in mind that, when executed in a notebook, only the return value of the last line is displayed
"

""
- `lazy_map(k,a,b)` is semantically (conceptually) equivalent to `map(k,a,b)` for a callable object `k
- Objects `k` such that  `isa(k,Map)==true` are callable. i.e. `k(x...)` is equivalent to `evaluate(k,x...)`
""

"∑(integrate((u-ufₕ)*(u-ufₕ),Qₕ)) -> ∑( ∫( (u-ufₕ)*(u-ufₕ) )Qₕ ) even more unicode-ish"

Use the Gridap builtin print_op_tree instead of print_lazy_array_type_parameters. This also will simplify the reading since you don't need to expose so many details of LazyArray (whic is quite overwhelming).

trying to address without success

Rewrote the first passages taking into account the following remark

"
To simplify things (for us and for the reader), I would write the tutorial assuming that
the reader will do it by executing the cells in the notebook (just like the other tutorials).
"

corresponding to Gridap.jl git repo #master branch so that we
have access to the following bug-fix:

gridap/Gridap.jl#563