Typos and specify run vs compile time

Author: nicolasstucki

docs/docs/reference/metaprogramming/macros.md

@@ -602,12 +602,12 @@ val b: String = defaultOf("string")
 ```
 
 ### Defining a macro and using it in a single project
-It is possible to define macros and use them in the same project as the implementation of
-the macros does not depend on code in the file where it used. It might still depend
-on types and quoted code that refers to the use-site file.
+It is possible to define macros and use them in the same project as long as the implementation
+of the macros does not have run-time dependencies on code in the file where it is used.
+It might still have compile-time dependencies on types and quoted code that refers to the use-site file.
 
-To provide this functionality Dotty provides a transparent compilation mode were files that
-expand try to expand a macro but fail because the macro has not been compiled yet are suspended.
+To provide this functionality Dotty provides a transparent compilation mode where files that
+try to expand a macro but fail because the macro has not been compiled yet are suspended.
 If there are any suspended files when the compilation ends, the compiler will automatically restart
 compilation of the suspended files using the output of the previous (partial) compilation as macro classpath.
 In case all files are suspended due to cyclic dependencies the compilation will fail with an error.