Merge pull request #10 from Eason1003/patch-7

Update contributing.adoc

cti-doc_en/modules/ROOT/pages/contributing.adoc

@@ -7,23 +7,25 @@ NOTE: This documentation website and the associated material are free under the
 There are multiple ways to contribute to the documentation.
 
 * Adding content
-* Translate exisiting content
-* Improve content by fixing typo, spelling, formating…
+* Translate existing content
+* Improve content by fixing typos, spelling, formatting…
 
 === How to edit a page
 
 To edit the page content do the following thing:
 
-IMPORTANT: To edit content you  need to have a https://github.com/[GitHub] account.
+IMPORTANT: To edit content you need to have a https://github.com/[GitHub] account.
 
 * Go to the page to edit
 * Click on the `Edit this Page` link at the top right of the page
 * Edit the file
-* Create a Pull Request
+* Click the `Commit changes`
+* Click `Propose changes` after filling Commit message and Extended description
+* Click `Create pull request`
 
 [TIP]
 ====
-The content is writen using the https://asciidoc.org/[AsciiDoc] markup language.
+The content is written using the https://asciidoc.org/[AsciiDoc] markup language.
 
 To learn the basics and advanced features of this language, visit the https://docs.asciidoctor.org/asciidoc/latest/[AsciiDoc documentation website].
-====
+====