Markdown Documentation fixes

[lsiepel]

• removed colon in paragraph headers
• corrected wrong spelling of openHAB
• removed excess line feeds
• add some missing code fence languages
• ... while doing so i fixed some other markdown warnings while i had the files open

[psmedley]

Approved for my bindings

[marcelrv]

For miio, the documentation is automatically generated. Hence direct changes of the readme will be overwritted with each update.
To make the change persist the code of the readme helper needs to be adjusted.
https://github.com/openhab/openhab-addons/blob/main/bundles/org.openhab.binding.miio/src/test/java/org/openhab/binding/miio/internal/ReadmeHelper.java

[lsiepel]

For miio, the documentation is automatically generated. Hence direct changes of the readme will be overwritted with each update. To make the change persist the code of the readme helper needs to be adjusted. https://github.com/openhab/openhab-addons/blob/main/bundles/org.openhab.binding.miio/src/test/java/org/openhab/binding/miio/internal/ReadmeHelper.java

Thanks, done!

[wborn]

Thanks for the huge cleanup! 👍
Can you also fix the merge conflict?

[goopilot]

lgtm for folderwatcher binding