Small fixes for documentation.

Author: kzaher

Documentation/DesignRationale.md

@@ -23,7 +23,7 @@ There isn't much you can do with them without figuring out what will be the resu
 
 Will it be `E1`, `E2` or some new `E3` maybe? So you need a new set of operators just to solve that impedance mismatch.
 
-This for sure hurts composition properties, and Rx really doesn't care about why sequence fails, it just forwards failure further.
+This for sure hurts composition properties, and Rx really doesn't care about why sequence fails, it just usually forwards failure further down the observable chain.
 
 There is additional problem that maybe in some cases operators will fail for some internal error, and in that case you won't be able to construct resulting error and report failure.
 

Documentation/GettingStarted.md

@@ -996,7 +996,7 @@ extension NSObject {
 #endif
 ```
 
-**If Swift compiler doesn't have a way to deduct observed type (return Observable type), it will report error that the function doesn't exists.**
+**If Swift compiler doesn't have a way to deduce observed type (return Observable type), it will report error about function not existing.**
 
 Here are some ways you can give him hints about observed type:
 

README.md

@@ -1,6 +1,8 @@
 <img src="assets/Rx_Logo_M.png" width="36" height="36"> RxSwift: ReactiveX for Swift
 ======================================
 
+[![Travis CI](https://travis-ci.org/kzaher/RxSwift.svg?branch=master)](https://travis-ci.org/kzaher/RxSwift)
+
 Xcode 6.3 / Swift 1.2 required
 
 Rx is a [generic abstraction of computation](https://youtu.be/looJcaeboBY) expressed through `Observable<Element>` interface.