Renamed queries.txt to Queries.md
Updated Queries.md: Reworked Commit section

* Added Markdown syntax
* Added MySQL highlighting
* Added spacing for better readability of queries
Updated Queries.md: Reworked Actions section

* Added Markdown syntax
* Added MySQL highlighting
* Added spacing for better readability of queries
Updated Queries.md: Reworked Files section

* Added Markdown syntax
* Added MySQL highlighting
* Added spacing for better readability of queries
Updated Queries.md: Reworked Commits-Files section

* Added Markdown syntax
* Added MySQL highlighting
* Added spacing for better readability of queries
Updated Queries.md: Reworked Actions-Files section

* Added Markdown syntax
* Added MySQL highlighting
* Added spacing for better readability of queries
Updated Queries: Reworked Size variables section

* Added Markdown syntax
* Added MySQL highlighting
* Added spacing for better readability of queries
Updated Queries.md: Reworked Files (Size) section

* Added Markdown syntax
* Added MySQL highlighting
* Added spacing for better readability of queries
Updated Queries: Committers/Authors section

* Added Markdown syntax
* Added MySQL highlighting
* Added spacing for better readability of queries
Merge pull request #25 from andygrunwald/markdown_queries

[IMPROVEMENT] Rework example queries for more readability