README: fixed link to installation instructions. Also, some minor style changes. (#620)
README: fixed link to installation instructions. Also, some minor style changes. (#620)

* Fixed link to installation instructions. Also, some minor style changes.

* Link to landing page of user manual.
ComPlat/chemotion_ELN,ComPlat/chemotion_ELN,ComPlat/chemotion_ELN,ComPlat/chemotion_ELN