Merge pull request #49 from IRod22/fix-grammar-readme

docs: fix grammar errors in README.md

README.md

@@ -34,7 +34,7 @@ By combining the two, you can generate UnityPrefab from XD files without being a
 
 ### No runtime effect
 
-- AkyuiUnity only creates the prefab, no cost at runtime.
+- AkyuiUnity only creates the prefab, so there's no cost at runtime.
 
 ### Highly customizable
 
@@ -74,14 +74,14 @@ MIT License (see [LICENSE](LICENSE))
 
 ## Buy me a coffee
 
-Are you enjoying save time?  
+Are you enjoying time saved using my code?  
 Buy me a coffee if you love my code!  
 https://www.buymeacoffee.com/kyubuns
 
 ## "I used it for this game!"
 
 I'd be happy to receive reports like "I used it for this game!"  
-Please contact me by email, twitter or any other means.  
+Please contact me by email, twitter, or any other means.  
 (This library is MIT licensed, so reporting is NOT mandatory.)  
 [Message Form](https://kyubuns.dev/message.html)