First try at improving the README, more to come
Compact screenshot
Add a bit of FAQ
README: typo
Contribution notes
Adapt text to changed screenshot
Fix some wording issues
Set port variable instead of placeholder

Suggesting a port in the placeholder can be confusing, as it may
lead people to believe that this value will be sent to the server
while in fact it will not be.

Fix #324
Merge pull request #320 from glowing-bear/docs

Improve README
Merge pull request #325 from glowing-bear/fix_default_port

Set port variable instead of placeholder
Allow `+` and `@` before a channel name as well for linkification

useful for /whois
Merge pull request #327 from glowing-bear/channelregex

Allow `+` and `@` before a channel name as well for linkification
Scroll on resize

main application of this: opening the keyboard on mobile devices
Merge pull request #328 from glowing-bear/scroll-on-resize

Scroll on resize if at the bottom of the bufferlines
Catch broken UTF-8 to enable loading of buffers with broken lines
Merge pull request #329 from glowing-bear/invalidchars

Catch broken UTF-8 to enable loading of buffers with broken lines
Replace all non-ASCII bytes with "?" in case of broken UTF-8.
Merge pull request #330 from anders/invalid-utf8

Replace all non-ASCII bytes with "?" in case of broken UTF-8.
Wrap IPv6 literals with brackets. Fixes #323.
Merge pull request #332 from anders/fix-323

Wrap IPv6 literals with brackets. Fixes #323.