Update readme.md

readme.md

@@ -174,7 +174,7 @@ A reducer is simply a pure function that takes the previous state and an action,
 
 #### What is Redux Thunk used for?
 
-Redux thunk is middleware that allows you to write action creators that return a function instead of an action. The thunk can then be used to delay the dispatch of an action if a certain condition is met. This allows you to handle the asyncronous dispatching of actions. 
+Redux thunk is middleware that allows you to write action creators that return a function instead of an action. The thunk can then be used to delay the dispatch of an action if a certain condition is met. This allows you to handle the asynchronous dispatching of actions. 
 
 #### What is a pure function?
 A pure function is a function that doesn't depend on and doesn't modify the states of variables out of its scope. Essentially, this means that a pure function will always return the same result given same parameters.