Update side_effects.mdx

Typos

website/docs/essentials/side_effects.mdx

@@ -99,7 +99,7 @@ will follow naturally.
       label: "Modifiers (optional)",
       description: <>
 
-Often, after the type of the provider you may see a "motifier".  
+Often, after the type of the provider you may see a "modifier".  
 Modifiers are optional, and are used to tweak the behavior of the provider
 in a way that is type-safe.
 
@@ -300,7 +300,7 @@ when logic is performed in event handlers such as "onPressed".
 
 We now have a button which makes a _POST_ request when pressed.  
 However, at the moment, our UI does not update to reflect the new todo list.
-We will want to our local cache to match the server's state.
+We will want our local cache to match the server's state.
 
 There are a few ways to do so with their pros and cons.
 
@@ -396,7 +396,7 @@ If you want to use mutable state instead, you can alternatively do:
 
 ## Going further: Showing a spinner & error handling
 
-We've all we seen do far, we have a button which makes a _POST_ request
+With all we've seen so far, we have a button which makes a _POST_ request
 when pressed; and when the request is done, the UI updates to reflect
 changes.  
 But at the moment, there is no indication that the request is being