Update README.md

README.md

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-This is the parent repository of [MOOSE simulator](https://moose.ncbs.res.in). It contains core (written in C++) of MOOSE, it's python scripting interface, and its graphical user interface (GUI) as [git-submodules](https://git-scm.com/book/en/v2/Git-Tools-Submodules). 
+This is the parent repository of [MOOSE simulator](https://moose.ncbs.res.in). It hosts components of MOOSE: core (written in C++) of MOOSE, python scripting interface, and its graphical user interface (GUI), and MOOGLI as [git-submodules](https://git-scm.com/book/en/v2/Git-Tools-Submodules). 
 
 You can find detailed description of each MOOSE component in respective `README.md` in  their repositories below: