* Unit upgrade tooltip in overview
* Unit upgrade tooltip in action table
* Unit upgrade tooltip in action table - colored Key
* Unit upgrade in Overview - reselect
* Fix merge problems and FormattedLine color markup ability
* Relax MarkupRenderer.render lines parameter type
* Skin has a getColor shortcut - use it
* Unit overview upgrade icons now open a menu instead of upgrading immediately
* Unit Overview upgrade - "Mid" buttons
* Unit Overview upgrade - reorg
* Fixed the links in the docs
* Fixed broken tables
Tables without a line break above are not treated as valid tables
* Removed redundant table of contents and formatted some bulleted lists
* The image in Regions.md is now properly displayed
* Standardized list indentation, line spacing, table header rows, and JSON code blocks
* Standardized headers
* Fixed remaining broken links, edited pseudo-footnotes