s/exeptions/exceptions/

Author: ydah

README.md

@@ -152,7 +152,7 @@ using an if statement:  8123851.3 i/s
   String#constantize:  2462371.2 i/s - 3.30x  (± 0.00) slower
 ```
 
-##### `raise` vs `E2MM#Raise` for raising (and defining) exeptions  [code](code/general/raise-vs-e2mmap.rb)
+##### `raise` vs `E2MM#Raise` for raising (and defining) exceptions  [code](code/general/raise-vs-e2mmap.rb)
 
 Ruby's [Exception2MessageMapper module](http://ruby-doc.org/stdlib-2.2.0/libdoc/e2mmap/rdoc/index.html) allows one to define and raise exceptions with predefined messages.