Updated docs

CONTRIBUTING.md

@@ -1,8 +1,8 @@
 # :eight_spoked_asterisk: :stars: :sparkles: :dizzy: :star2: :star2: :sparkles: :dizzy: :star2: :star2: Contributing :star: :star2: :dizzy: :sparkles:  :star: :star2: :dizzy: :sparkles: :stars: :eight_spoked_asterisk:
 
 So, you want to contribute to this project! That's awesome. However, before
-doing so, please read the following simple steps explaining how to contribute. This will
-make life easier and help avoid wasting time on things that are not
+doing so, please read the following simple steps how to contribute. This will
+make the life easier and will avoid wasting time on things which are not
 requested. :sparkles:
 
 ## Discuss the changes before doing them
@@ -15,9 +15,9 @@ requested. :sparkles:
    system, Node.JS version etc.), screenshots (so we can see what you are
    seeing).
 
- - It is recommended to wait for feedback before continuing the next steps.
+ - It is recommended to wait for feedback before continuing to next steps.
    However, if the issue is clear (e.g. a typo) and the fix is simple, you can
-   continue to fix it.
+   continue and fix it.
 
 ## Fixing issues
  - Fork the project in your account and create a branch with your fix:

DOCUMENTATION.md

@@ -110,7 +110,7 @@ Sets, gets or deletes the cookie.
 - **String** `value`: If provided and it not `null`, the cookie will be set. If it's null, the cookie will be deleted. If `value` is not provided, the cookie value will be returned.
 
 #### Return
-- **String|null|undefined** `null`, if the cookie was deleted. `undefined` if the cookie doesn't exist. The cookie value if this exists.
+- **String** `null`, if the cookie was deleted. `undefined` if the cookie doesn't exist. The cookie value if this exists.
 
 ### `file(path, customRoot)`
 Serves a file to the response.
@@ -218,7 +218,7 @@ Gets the transformer for a url.
 - **String** `method`: The method.
 
 #### Return
-- **Transformer|null** The transformer (if it exists) or `null`.
+- **Transformer** The transformer (if it exists) or `null`.
 
 ### `getHooksStrict(type, url, method)`
 Similar to `getHooks`, but doesn't concat hooks based on the regex
@@ -231,7 +231,7 @@ matching but only if they are the same regex.
 - **String** `method`: The method.
 
 #### Return
-- **Transformer|null** The transformer (if it exists) or `null`.
+- **Transformer** The transformer (if it exists) or `null`.
 
 ### `insertHook(type, url, method, trans)`
 Inserts a new hook.

README.md

@@ -244,7 +244,7 @@ Sets, gets or deletes the cookie.
 - **String** `value`: If provided and it not `null`, the cookie will be set. If it's null, the cookie will be deleted. If `value` is not provided, the cookie value will be returned.
 
 #### Return
-- **String|null|undefined** `null`, if the cookie was deleted. `undefined` if the cookie doesn't exist. The cookie value if this exists.
+- **String** `null`, if the cookie was deleted. `undefined` if the cookie doesn't exist. The cookie value if this exists.
 
 ### `file(path, customRoot)`
 Serves a file to the response.
@@ -352,7 +352,7 @@ Gets the transformer for a url.
 - **String** `method`: The method.
 
 #### Return
-- **Transformer|null** The transformer (if it exists) or `null`.
+- **Transformer** The transformer (if it exists) or `null`.
 
 ### `getHooksStrict(type, url, method)`
 Similar to `getHooks`, but doesn't concat hooks based on the regex
@@ -365,7 +365,7 @@ matching but only if they are the same regex.
 - **String** `method`: The method.
 
 #### Return
-- **Transformer|null** The transformer (if it exists) or `null`.
+- **Transformer** The transformer (if it exists) or `null`.
 
 ### `insertHook(type, url, method, trans)`
 Inserts a new hook.