diff --git a/README.md b/README.md
index a158bd16d..04c56d87e 100644
--- a/README.md
+++ b/README.md
@@ -7,9 +7,9 @@ This package contains a Mermaid feature for CKEditor 5.
 
 ## CKEditor 5 Mermaid - Running manual test
 
-You can test all of the functionalities of the CKEdtitor 5 mermaid feature with the manual test sample.
+You can test all of the features of the `ckeditor5-mermaid` plugin with the manual test sample.
 
-Having the build in place, it's enough to execute the following at the root of your local clone of the project:
+After installing dependencies it's enough to execute the following script at the root of your local clone of the project:
 
 ```
 yarn start
@@ -21,4 +21,4 @@ See [LICENSE.md](LICENSE.md) file.
 
 ### Trademarks
 
-**CKEditor** is a trademark of [CKSource](https://cksource.com) Holding sp. z o.o. All other brand and product names are trademarks, registered trademarks or service marks of their respective holders.
\ No newline at end of file
+**CKEditor** is a trademark of [CKSource](https://cksource.com) Holding sp. z o.o. All other brand and product names are trademarks, registered trademarks or service marks of their respective holders.