Apply suggestions from code review

Co-authored-by: Mathias Bolt Lesniak <git@mabolek.dev>

Author: linawolf

Documentation/FirstProject/CreateRootPage.rst

@@ -52,7 +52,7 @@ Now, you need to configure the new page:
 *   In the form that appears, give your new page a name.
     This will be the label of your root page in the page tree.
 
-*   Under the :guilabel:`Behaviour` tab, look for the checkbox called
+*   Under the :guilabel:`Behavior` tab, look for the checkbox called
     "Use as Root Page". Ensure this is checked.
 
 ..  figure:: /Images/ManualScreenshots/CreateRootPage/SetRootPage.png
@@ -79,29 +79,29 @@ The page is only visible in the Backend at this point
 Configure the site
 ==================
 
-You need a `Site configuration <https://docs.typo3.org/permalink/t3start:site-management>`_.
-If you started in a freshly installed TYPO3 installation the site configuration
-was auto-created and you can edit it:
+All sites must have a `site configuration <https://docs.typo3.org/permalink/t3start:site-management>`_.
+If you have created a new page in the root of the page tree, the site configuration has been
+created automatically and you can edit it:
 
 ..  figure:: /Images/ManualScreenshots/CreateRootPage/AutogeneratedSiteConfig.png
     :alt: The auto-generated site of a new root page viewed in the "Sites" module
 
-    You can find the auto-generated site for your root page in the module :guilabel:`Site Management > Sites`
+    You can find the auto-generated site configuration for your root page in the module :guilabel:`Site Management > Sites`
 
 ..  _create-root-page-site-package:
 
 Create a site package for the theme
 ===================================
 
-The site needs a theme, called "site package" in the TYPO3 world.
-See chapter
-`site package <https://docs.typo3.org/permalink/t3start:creating-a-site-package>`_.
+The site needs a theme, also known as a "site package" in the TYPO3 world. Learn more about 
+`creating a site package <https://docs.typo3.org/permalink/t3start:creating-a-site-package>`_.
 
 ..  admonition:: Trouble shooting
 
-    TYPO3 does not come with a default theme you need to install
-    or create a site package. Otherwise you will see a message like the
-    following when trying to display the page in the frontend:
+    TYPO3 does not come with a default theme. You will have to install
+    or create a site package. If your site does not have a theme configured,
+    you will see a message like the the one below when trying to display 
+    the page in the frontend:
 
     ..  figure:: /Images/ManualScreenshots/CreateRootPage/NoTypoScriptFound.png
         :alt: Error message: No TypoScript record found!
@@ -110,8 +110,8 @@ See chapter
 
     *   `How to create a site package <https://docs.typo3.org/permalink/t3start:how-to-create-a-site-package>`_
     *   `Troubleshooting "No TypoScript found!" <https://docs.typo3.org/permalink/t3tsref:guide-troubleshooting>`_
-    *   Use the `Introduction Package <https://docs.typo3.org/permalink/t3start:introductionpackage-index>`_
-        with a ready to use theme and predefined content.
+    *   The `Introduction Package <https://docs.typo3.org/permalink/t3start:introductionpackage-index>`_
+        includes a ready-to-use theme and example content.
 
 ..  _create-root-page-enable: