update Podspec

Author: Bruce-pac

Example/Podfile.lock

@@ -2,15 +2,15 @@ PODS:
   - IGListDiffKit (4.0.0)
   - IGListKit (4.0.0):
     - IGListDiffKit (= 4.0.0)
-  - RxCocoa (5.0.1):
+  - RxCocoa (5.1.1):
     - RxRelay (~> 5)
     - RxSwift (~> 5)
-  - RxIGListKit (2.0.0):
+  - RxIGListKit (2.0.1):
     - IGListKit (~> 4.0.0)
-    - RxCocoa (~> 5.0.0)
-  - RxRelay (5.0.1):
+    - RxCocoa (~> 5.0)
+  - RxRelay (5.1.1):
     - RxSwift (~> 5)
-  - RxSwift (5.0.1)
+  - RxSwift (5.1.1)
 
 DEPENDENCIES:
   - RxIGListKit (from `../`)
@@ -30,11 +30,11 @@ EXTERNAL SOURCES:
 SPEC CHECKSUMS:
   IGListDiffKit: 665d6cf43ce726e676013db9c7d6c4294259b6b2
   IGListKit: fd5a5d21935298f5849fa49d426843cff97b77c7
-  RxCocoa: e741b9749968e8a143e2b787f1dfbff2b63d0a5c
-  RxIGListKit: 722675f9012a15ca1cc147c4c30405ed38a2c7a0
-  RxRelay: 89d54507f4fd4d969e6ec1d4bd7f3673640b4640
-  RxSwift: e2dc62b366a3adf6a0be44ba9f405efd4c94e0c4
+  RxCocoa: 32065309a38d29b5b0db858819b5bf9ef038b601
+  RxIGListKit: ff1a7e83e98bedb3aa1546744f96b8ffaa4fd222
+  RxRelay: d77f7d771495f43c556cbc43eebd1bb54d01e8e9
+  RxSwift: 81470a2074fa8780320ea5fe4102807cb7118178
 
 PODFILE CHECKSUM: 2f55325866dc3334483180691ade683b2d17a20f
 
-COCOAPODS: 1.8.4
+COCOAPODS: 1.9.3