Nth PR on develop branch for easybuild-docs, for N=5

still bits and pieces to improve, but ok to receive the first round of feedback
Include the bit of text explaining the dependency resolution here from the EB paper::

EasyBuild supports installing an entire software stack, including the required toolchain if needed, with a single ``eb`` invocation.

The dependency resolution mechanism will construct a full dependency graph for the software package(s) being installed, after which a list of dependencies is composed for which no module is available yet. Each of the retained dependencies will then be built and installed, in the required order as indicated by the dependency graph.

To make EasyBuild try and resolve dependencies, use the ``--robot/-r`` command line option, as follows::

<example>

.. tip:: This is particularly useful for software packages that have an extensive list of dependencies, or when reinstalling software using a different compiler toolchain (using the `--try-toolchain` command line option in combination with `--robot`).