fix: indent issue (#376)

Author: jaeopt

README.md

@@ -64,7 +64,7 @@ github "optimizely/objective-c-sdk" ~> 2.1.0
             ```$(SRCROOT)/Carthage/Build/<platform>/OptimizelySDKShared.framework```
             ```$(SRCROOT)/Carthage/Build/<platform>/OptimizelySDKUserProfileService.framework```
             ```$(SRCROOT)/Carthage/Build/<platform>/OptimizelySDK<platform>.framework```</pre>
-        - Add the paths to the copied frameworks to the **Output Files** list:<pre>
+      - Add the paths to the copied frameworks to the **Output Files** list:<pre>
             ```$(BUILT_PRODUCTS_DIR)/$(FRAMEWORKS_FOLDER_PATH)/OptimizelySDKCore.framework```
             ```$(BUILT_PRODUCTS_DIR)/$(FRAMEWORKS_FOLDER_PATH)/OptimizelySDKDatafileManager.framework```
             ```$(BUILT_PRODUCTS_DIR)/$(FRAMEWORKS_FOLDER_PATH)/OptimizelySDKEventDispatcher.framework```