Typo in readme

[jeanflower]

The first line of text has a typo: "iCircles (short for Inductive Cirles)" should be "iCircles (short for Inductive Circles)". I can fix at some point, but if it's easy for someone else to do it...

[jeanflower]

Is iCircles an algorithm for drawing spider diagrams, or an algorithm for drawing Euler diagrams? Also in readme.

[urbas]

Should be addressed in #2. @jeanflower: Please give it a check.