Update readme

Update platformio.ini

Merge pull request wled#218 from Aircoookie/captiveportal

Release v0.8.5

Release of v0.8.4

Default to LwiP 2 in PIO
Fixed 12hr format time

Fixed mobile UI effect list not loading

Merge pull request wled#83 from Aircoookie/development

Fixed incorrect #defines for 0.8.2

Merge pull request wled#68 from Aircoookie/development

Release of v0.8.0

Merge pull request wled#57 from Aircoookie/development

Release of v0.8.0

Release of WLED 0.7.1

Merge dev to master

Merge pull request wled#27 from Aircoookie/development

Development