add way back machine link to Sebastian's reference

s1037989 committed Oct 24, 2024

fix broken link - perhaps page moved?

pscott-au committed Nov 12, 2018

fixed a small typo and italicized a "not" for readability

genio committed Jun 26, 2014

Whitespace fix in code example.

Björn Pettersson committed Mar 11, 2014

Created Blocking vs non blocking 101 (markdown)

Stefan Adams committed Jan 17, 2014