MOD: update readme and fix typo

Change-Id: I9d10ad8f2f9b5876311868dd1bc3ff92aa7db829

README.md

@@ -54,16 +54,17 @@ To use YTKNetwork add the following to your Podfile
 
 Or add this in your Cartfile:
 
-    github "yuantiku/YTKNetwork" ~> 2.0
+    github "yuantiku/YTKNetwork" ~> 3.0
 
 ## Requirements
 
 | YTKNetwork Version | AFNetworking Version |  Minimum iOS Target | Note |
 |:------------------:|:--------------------:|:-------------------:|:-----|
+| 3.x | 4.x | iOS 9 | Xcode 11+ is required. |
 | 2.x | 3.x | iOS 7 | Xcode 7+ is required. |
 | 1.x | 2.x | iOS 6 | n/a |
 
-YTKNetwork is based on AFNetworking. You can find more detail about version compability at [AFNetworking README](https://github.com/AFNetworking/AFNetworking).
+YTKNetwork is based on AFNetworking. You can find more detail about version compatibility at [AFNetworking README](https://github.com/AFNetworking/AFNetworking).
 
 ## Guide & Demo
 
@@ -77,14 +78,15 @@ YTKNetwork is based on AFNetworking. You can find more detail about version comp
  * [veecci][veecciGithub]
  * [tangqiaoboy][tangqiaoboyGithub]
  * [skyline75489][skyline75489Github]
+ * [joeshang][joeshangGithub]
 
 ## Acknowledgements
 
  * [AFNetworking]
  * [AFDownloadRequestOperation]
 
 Thanks for their great work.
- 
+
 ## License
 
 YTKNetwork is available under the MIT license. See the LICENSE file for more info.
@@ -103,3 +105,4 @@ YTKNetwork is available under the MIT license. See the LICENSE file for more inf
 [maojjGithub]:https://github.com/maojj
 [veecciGithub]:https://github.com/veecci
 [skyline75489Github]:https://github.com/skyline75489
+[joeshangGithub]:https://github.com/joeshang

YTKNetwork/YTKBaseRequest.h

@@ -202,7 +202,7 @@ typedef void(^YTKRequestCompletionBlock)(__kindof YTKBaseRequest *request);
 ///  will be called on the main queue.
 @property (nonatomic, copy, nullable) YTKRequestCompletionBlock failureCompletionBlock;
 
-///  This can be used to add several accossories object. Note if you use `addAccessory` to add acceesory
+///  This can be used to add several accessories object. Note if you use `addAccessory` to add accessory
 ///  this array will be automatically created. Default is nil.
 @property (nonatomic, strong, nullable) NSMutableArray<id<YTKRequestAccessory>> *requestAccessories;
 
@@ -259,7 +259,7 @@ typedef void(^YTKRequestCompletionBlock)(__kindof YTKBaseRequest *request);
 /// @name Subclass Override
 ///=============================================================================
 
-///  Called on background thread after request succeded but before switching to main thread. Note if
+///  Called on background thread after request succeeded but before switching to main thread. Note if
 ///  cache is loaded, this method WILL be called on the main thread, just like `requestCompleteFilter`.
 - (void)requestCompletePreprocessor;
 
@@ -284,14 +284,14 @@ typedef void(^YTKRequestCompletionBlock)(__kindof YTKBaseRequest *request);
 ///              Otherwise the result URL may not be correctly formed. See also `URLString:relativeToURL`
 ///              for more information.
 ///
-///              Additionaly, if `requestUrl` itself is a valid URL, it will be used as the result URL and
+///              Additionally, if `requestUrl` itself is a valid URL, it will be used as the result URL and
 ///              `baseUrl` will be ignored.
 - (NSString *)requestUrl;
 
 ///  Optional CDN URL for request.
 - (NSString *)cdnUrl;
 
-///  Requset timeout interval. Default is 60s.
+///  Request timeout interval. Default is 60s.
 ///
 ///  @discussion When using `resumableDownloadPath`(NSURLSessionDownloadTask), the session seems to completely ignore
 ///              `timeoutInterval` property of `NSURLRequest`. One effective way to set timeout would be using

YTKNetwork/YTKBatchRequest.h

@@ -69,7 +69,7 @@ NS_ASSUME_NONNULL_BEGIN
 ///  Tag can be used to identify batch request. Default value is 0.
 @property (nonatomic) NSInteger tag;
 
-///  This can be used to add several accossories object. Note if you use `addAccessory` to add acceesory
+///  This can be used to add several accessories object. Note if you use `addAccessory` to add acceesory
 ///  this array will be automatically created. Default is nil.
 @property (nonatomic, strong, nullable) NSMutableArray<id<YTKRequestAccessory>> *requestAccessories;
 

YTKNetwork/YTKChainRequest.h

@@ -62,7 +62,7 @@ typedef void (^YTKChainCallback)(YTKChainRequest *chainRequest, YTKBaseRequest *
 ///  The delegate object of the chain request. Default is nil.
 @property (nonatomic, weak, nullable) id<YTKChainRequestDelegate> delegate;
 
-///  This can be used to add several accossories object. Note if you use `addAccessory` to add acceesory
+///  This can be used to add several accessories object. Note if you use `addAccessory` to add acceesory
 ///  this array will be automatically created. Default is nil.
 @property (nonatomic, strong, nullable) NSMutableArray<id<YTKRequestAccessory>> *requestAccessories;
 

YTKNetwork/YTKNetworkAgent.m

@@ -126,7 +126,7 @@ - (NSString *)buildRequestUrl:(YTKBaseRequest *)request {
             baseUrl = [_config baseUrl];
         }
     }
-    // URL slash compability
+    // URL slash compatibility
     NSURL *url = [NSURL URLWithString:baseUrl];
 
     if (baseUrl.length > 0 && ![baseUrl hasSuffix:@"/"]) {

YTKNetwork/YTKNetworkPrivate.m

@@ -149,7 +149,7 @@ + (BOOL)validateResumeData:(NSData *)data {
     return [[NSFileManager defaultManager] fileExistsAtPath:localFilePath];
 #endif
     // After iOS 9 we can not actually detects if the cache file exists. This plist file has a somehow
-    // complicated structue. Besides, the plist structure is different between iOS 9 and iOS 10.
+    // complicated structure. Besides, the plist structure is different between iOS 9 and iOS 10.
     // We can only assume that the plist being successfully parsed means the resume data is valid.
     return YES;
 }