v0.5.0

• updated example in README

• adding addLegendAwesomeIcon function to produce legends with markers from
  awesome icon libraries

• adding in line and polygon symbol and adding symbols to the README

What's Changed

• Devel by @tomroh in #32
• updating logo by @tomroh in #33
• Devel by @tomroh in #34
• Devel by @tomroh in #35
• Devel by @tomroh in #36
• Devel by @tomroh in #37
• Devel by @tomroh in #40
• Devel by @tomroh in #41
• updating site by @tomroh in #42
• v 0.5.0 by @tomroh in #43
• adding site by @tomroh in #44

Full Changelog: v0.4.0...v0.5.0