fix spelling
Elastic search advanced key storing
Merge pull request #49 from arnarthor/master

Elastic search advanced key storing
Merge pull request #48 from margreth11/patch-4

fix spelling
changed from .md and added some information about mongo and mongoose
Merge pull request #50 from axelg12/master

Added some information about mongo and mongoose
Fixed separate
Fixing minor grammar mistakes in LINQ.md
Fixing merge conflict in elasticsearch.md