Merge pull request #289 from kmulvey/fast-string-searching

add "Fast String Searching"

stringology/README.md

@@ -8,3 +8,6 @@
       also a survey paper that is more than the sum of its citations,
       clarifying the presentation of all the algorithms with a
       unifying framework.
+
+* [Fast String Searching](http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.13.9460&rep=rep1&type=pdf)
+    - This paper describes techniques to improve the performance of the [Boyer–Moore string search algorithm](https://en.wikipedia.org/wiki/Boyer%E2%80%93Moore_string_search_algorithm).