docs/Overview.md: Fixed 2 hyperlinks.

Summary:
These didn't work properly in GitHub.
Closes https://github.com/facebook/folly/pull/375

Differential Revision: D3281872

Pulled By: elliottneilclark

fbshipit-source-id: b5398267ff5856bb6a7c4a3b963ae5cb47859bc3

diff --git a/folly/docs/Overview.md b/folly/docs/Overview.md
index e2ece9fb095afe4ae799c481be04c7bbe312be28..633645381416f1401c993f5224dd8263c4fa163c 100644 (file)
--- a/folly/docs/Overview.md
+++ b/folly/docs/Overview.md
@@ -1,6 +1,6 @@
 ### `folly/`
 
-For a high level overview see the [README](folly/README.md)
+For a high level overview see the [README](../../README.md)
 
 ### Components
 
@@ -92,7 +92,7 @@ Rabin fingerprinting.
 
 A polymorphic wrapper for callables similar to `std::function` but not copyable and therefore able to wrap non-copyable callables, such as lambdas that capture move-only types like `std::unique_ptr` or `folly::Promise`.
 
-### [`futures/`](folly/futures/Readme.md)
+### [`futures/`](../futures/README.md)
 
 Futures is a framework for expressing asynchronous code in C++ using the Promise/Future pattern.