[#491] Updated CHANGELOG.md

CHANGELOG.md

@@ -20,15 +20,15 @@ To use development versions of Kipper download the
 
 ### Changed
 
-- Moved function `executeKipperProgram` to `Run` as private function.
+- Moved function `executeKipperProgram` to `Run` as a private function.
 - Moved class `KipperCompileResult` to new file `compile-result.ts` in the same directory.
 - Field `KipperCompileResult.programCtx` can now be also `undefined`, due to the changed behaviour that now
   a `KipperCompileResult` is also returned for syntax errors (where it has no value).
 
 ### Fixed
 
 - CLI error handling bug as described in [#491](https://github.com/Luna-Klatzer/Kipper/issues/491). This includes
-  multiple bugs where errors where reported as "Unexpected CLI Error".
+	multiple bugs where errors were reported as "Unexpected CLI Error".
 
 ### Deprecated