Update equals-sign-chaining.md

estevao-schultz-neto-SAP · web-flow · commit 68dd3a3f9ef4 · 2021-03-23T09:51:03.000+01:00
diff --git a/docs/checks/equals-sign-chaining.md b/docs/checks/equals-sign-chaining.md
@@ -54,3 +54,7 @@ z = abap_true.
 
 x = y = z.        "#EC EQUALS_CHAINING
 ```
+
+### Further Readings & Knowledge
+
+* [ABAP Styleguides on Clean Code](https://github.com/SAP/styleguides/blob/main/clean-abap/CleanABAP.md#use-xsdbool-to-set-boolean-variables)
