Merge pull request bbatsov#112 from rauhs/patch-1

More variable naming conventions

Author: bbatsov

README.md

@@ -1226,12 +1226,16 @@ hints for the pairwise grouping with comments or empty lines.
  * in functions:
  * `f`, `g`, `h` - function input
  * `n` - integer input usually a size
- * `index` - integer index
+ * `index`, `i` - integer index
  * `x`, `y` - numbers
+ * `xs` - sequence
+ * `m` - map
  * `s` - string input
+ * `re` - regular expression
  * `coll` - a collection
  * `pred` - a predicate closure
  * `& more` - variadic input
+ * `xf` - xform, a transducer
  * in macros:
  * `expr` - an expression
  * `body` - a macro body