THRIFT-2849: spelling errors fixed using codespell tool

Client: All
Patch: Anatol Pomozov

This closes #281
diff --git a/lib/perl/README.md b/lib/perl/README.md
index 691488b..c48ce25 100644
--- a/lib/perl/README.md
+++ b/lib/perl/README.md
@@ -28,7 +28,7 @@
 Exceptions are thrown with die so be sure to wrap eval{} statments
 around any code that contains exceptions.
 
-The 64bit Integers work only upto 2^42 on my machine :-?
+The 64bit Integers work only up to 2^42 on my machine :-?
 Math::BigInt is probably needed.
 
 Please see tutoral and test dirs for examples...