[TASK] Documentation updated

README.md

+# sg_news
+
+Integrates a powerful News-System. News and Categories can be created as normal TYPO3-pages. News-pages have several
+additional meta information.
+
 ## Integration
 
 sg_news will not be an install & forget extension as we needs some rendering information for the frontend. This
@@ -65,3 +70,11 @@ provided by you:
 ```
 lib.mainContent < styles.content.col1
 ```
+### Tags
+In addition to categories, multiple tags can be created and specified for each news page.
+
+Tags can be created by adding sys_category records to the root page of the news block (blog).
+In order to differentiate each block's tags from the others, the PageTS value of **TCEFORM.pages.tx_sgnews_tags.PAGE_TSCONFIG_ID** 
+can be set for each of the blocks containing the pid value for the selectable tags.
+To make sure that only the correct tags are displayed in the FE, the **plugin.tx_sgnews.settings.tagPid**
+constant must be set to the same value.