DOC: Use hrule to separate alternatives in README; reword

Author: kernc

README.md

@@ -100,17 +100,19 @@ Features
 * Interactive visualizations
 
 
+-------------------------------------------------
+
 Alternatives
 ------------
 The thing with backtesting is, unless you dug into the dirty details yourself,
-you can't rely on execution correctness, and you may lose your house.
+you can't rely on execution correctness, and you risk losing your house.
 In addition, everyone has their own preconveived ideas about how a mechanical
-trading strategy should be conducted, so everyone (and their brothers)
+trading strategy should be conducted, so everyone (and their brother)
 just rolls their own backtesting frameworks.
 
 If after reviewing the docs and exmples perchance you find
-[_Backtesting.py_][website] is not your cup of tea,
-you can have a look at some similar alternative Python backtesting frameworks:
+[_Backtesting.py_][website] not your cup of tea,
+kindly have a look at some similar alternative Python backtesting frameworks:
 
 - [bt](http://pmorissette.github.io/bt/) -
   a framework based on reusable and flexible blocks of