Add hint on auto formatting (#13886)

* Add hint on auto formatting

* Fix spelling of Checkstyle

* Revert JBang - is in the settings xml

* Add heading to enable deep linking

Author: koppor

docs/getting-into-the-code/guidelines-for-setting-up-a-local-workspace/13-12.5-auto-formatting.png

@@ -37,6 +37,8 @@ Click on "Restart" to finally restart.
 
 Wait for IntelliJ coming up again.
 
+## Put JabRef's code style configuration in place
+
 Go to **File > Settings... > Editor > Code Style**
 
 Click on the settings wheel (next to the scheme chooser),
@@ -65,13 +67,13 @@ Click there "OK", too.
 
 Click on "Apply" to store the preferences.
 
-## Put JabRef's checkstyle configuration in place
+## Put JabRef's Checkstyle configuration in place
 
-Now, put the checkstyle configuration file is in place:
+Now, put the Checkstyle configuration file is in place:
 
 Go to **File > Settings... > Tools > Checkstyle > Configuration File**
 
-Trigger the import dialog of a CheckStyle style by clicking the \[+] button:
+Trigger the import dialog of a Checkstyle style by clicking the \[+] button:
 
 {% figure caption:"Trigger the rule import dialog" %}
 ![Trigger the rule import dialog](13-07-checkstyle-start-import.png)
@@ -90,30 +92,20 @@ Then:
 
 Click on "Finish"
 
-Activate the CheckStyle configuration file by ticking it in the list
+Activate the Checkstyle configuration file by ticking it in the list
 
-{% figure caption:"JabRef's checkstyle config is activated" %}
-![JabRef's checkstyle config is activated](13-09-checkstyle-jabref-active.png)
+{% figure caption:"JabRef's Checkstyle config is activated" %}
+![JabRef's Checkstyle config is activated](13-09-checkstyle-jabref-active.png)
 {% endfigure %}
 
-Ensure that the [latest CheckStyle version](https://checkstyle.org/releasenotes.html) is selected (10.21.0 or higher).
+Ensure that the [latest Checkstyle version](https://checkstyle.org/releasenotes.html) is selected (10.21.0 or higher).
 Also, set the "Scan Scope" to "Only Java sources (including tests)".
 
 {% figure caption:"Checkstyle is the highest version - and tests are also scanned" %}
 ![Checkstyle is the highest version - and tests are also scanned](13-10-checkstyle-final-settings.png)
 {% endfigure %}
 
-Save settings by clicking "Apply" and then "OK"
-
-## Run checkstyle
-
-In the lower part of IntelliJ's window, click on "Checkstyle".
-In "Rules", change to "JabRef".
-Then, you can run a check on all modified files.
-
-{% figure caption:"JabRef's style is active - and we are ready to run a check on all modified files" %}
-![JabRef's style is active - and we are ready to run a check on all modified files](13-11-checkstyle-window.png)
-{% endfigure %}
+Save settings by clicking "Apply".
 
 ## Have auto format working properly in JavaDoc
 
@@ -127,6 +119,26 @@ At "Other", disable "Wrap at right margin"
 !["Wrap at right margin" disabled](13-12-editor-javadoc-do-not-wrap.png)
 {% endfigure %}
 
+## Enable auto formatting of your code
+
+IntelliJ can automatically reformat your code on save.
+Please make use of this functionality.
+
+Go to **File > Settings... > Tools > Actions on Save**.
+
+1. Check "Reformat on code"
+2. Click on "All file types" (on the right)
+3. Uncheck "All file types"
+4. Check "Java"
+5. Check "Optimize imports"
+6. Click on "All file types" (on the right)
+7. Uncheck "All file types" to disable it
+8. Check "Java"
+
+{% figure caption:"Enable autoformatting on save" %}
+![Enable autoformatting on save](13-12.5-auto-formatting.png)
+{% endfigure %}
+
 ## Enable proper import cleanup
 
 To enable "magic" creation and auto cleanup of imports, go to **File > Settings... > Editor > General > Auto Import**.
@@ -151,6 +163,16 @@ At section "Java", disable "One-line methods".
 
 Press "OK".
 
+## Run checkstyle
+
+In the lower part of IntelliJ's window, click on "Checkstyle".
+In "Rules", change to "JabRef".
+Then, you can run a check on all modified files.
+
+{% figure caption:"JabRef's style is active - and we are ready to run a check on all modified files" %}
+![JabRef's style is active - and we are ready to run a check on all modified files](13-11-checkstyle-window.png)
+{% endfigure %}
+
 ## Final comments
 
 {: .highlight }