Merge pull request kodecocodes#272 from jawwad/remove-extra-spaces

Remove a few extra spaces

Author: rayfix

README.markdown

@@ -11,7 +11,7 @@ Our overarching goals are clarity, consistency and brevity, in that order.
 * [Naming](#naming)
   * [Prose](#prose)
   * [Delegates](#delegates)
-  * [Use Type Inferred Context](#use-type-inferred-context)  
+  * [Use Type Inferred Context](#use-type-inferred-context)
   * [Generics](#generics)
   * [Class Prefixes](#class-prefixes)
   * [Language](#language)
@@ -183,7 +183,7 @@ Use extensions to organize your code into logical blocks of functionality. Each
 
 ### Protocol Conformance
 
- In particular, when adding protocol conformance to a model, prefer adding a separate extension for the protocol methods. This keeps the related methods grouped together with the protocol and can simplify instructions to add a protocol to a class with its associated methods.
+In particular, when adding protocol conformance to a model, prefer adding a separate extension for the protocol methods. This keeps the related methods grouped together with the protocol and can simplify instructions to add a protocol to a class with its associated methods.
 
 **Preferred:**
 ```swift
@@ -252,8 +252,8 @@ Keep imports minimal. For example, don't import `UIKit` when importing `Foundati
 
 * Indent using 2 spaces rather than tabs to conserve space and help prevent line wrapping. Be sure to set this preference in Xcode and in the Project settings as shown below:
 
-  ![Xcode indent settings](screens/indentation.png)
-  
+![Xcode indent settings](screens/indentation.png)
+
 * Method braces and other braces (`if`/`else`/`switch`/`while` etc.) always open on the same line as the statement but close on a new line.
 * Tip: You can re-indent by selecting some code (or ⌘A to select all) and then Control-I (or Editor\Structure\Re-Indent in the menu). Some of the Xcode template code will have 4-space tabs hard coded, so this is a good way to fix that.
 
@@ -279,7 +279,7 @@ else {
 
 * There should be exactly one blank line between methods to aid in visual clarity and organization. Whitespace within methods should separate functionality, but having too many sections in a method often means you should refactor into several methods.
 
-* Colons always have no space on the left and one space on the right. Exceptions are the ternary operator `? :`, empty dictionary `[:]` and  `#selector` syntax for unnamed parameters `(_:)`.
+* Colons always have no space on the left and one space on the right. Exceptions are the ternary operator `? :`, empty dictionary `[:]` and `#selector` syntax for unnamed parameters `(_:)`.
 
 **Preferred:**
 ```swift
@@ -403,7 +403,7 @@ Marking classes or members as `final` in tutorials can distract from the main to
 ```swift
 // Turn any generic type into a reference type using this Box class.
 final class Box<T> {
-  let value: T 
+  let value: T
   init(_ value: T) {
     self.value = value
   }
@@ -687,8 +687,8 @@ Extend object lifetime using the `[weak self]` and `guard let strongSelf = self
 **Preferred**
 ```swift
 resource.request().onComplete { [weak self] response in
-  guard let strongSelf = self else { 
-    return 
+  guard let strongSelf = self else {
+    return
   }
   let model = strongSelf.updateModel(response)
   strongSelf.updateUI(model)
@@ -787,15 +787,14 @@ When coding with conditionals, the left-hand margin of the code should be the "g
 ```swift
 func computeFFT(context: Context?, inputData: InputData?) throws -> Frequencies {
 
-  guard let context = context else { 
-    throw FFTError.noContext 
+  guard let context = context else {
+    throw FFTError.noContext
   }
-  guard let inputData = inputData else { 
-    throw FFTError.noInputData 
+  guard let inputData = inputData else {
+    throw FFTError.noInputData
   }
-    
+
   // use context and input to compute the frequencies
-    
   return frequencies
 }
 ```
@@ -822,10 +821,10 @@ When multiple optionals are unwrapped either with `guard` or `if let`, minimize
 
 **Preferred:**
 ```swift
-guard let number1 = number1, 
-      let number2 = number2, 
-      let number3 = number3 else { 
-  fatalError("impossible") 
+guard let number1 = number1,
+      let number2 = number2,
+      let number3 = number3 else {
+  fatalError("impossible")
 }
 // do something with numbers
 ```
@@ -898,14 +897,14 @@ let playerMark = (player == current ? "X" : "O")
 
 Where an Xcode project is involved, the organization should be set to `Ray Wenderlich` and the Bundle Identifier set to `com.razeware.TutorialName` where `TutorialName` is the name of the tutorial project.
 
-  ![Xcode Project settings](screens/project_settings.png)
-  
+![Xcode Project settings](screens/project_settings.png)
+
 ## Copyright Statement
 
 The following copyright statement should be included at the top of every source
 file:
 
-```swift 
+```swift
     /**
      * Copyright (c) 2017 Razeware LLC
      *