Update motr-in-prose.md
Adding link to nice pdclust detailed document.
@@ -134,7 +134,7 @@ Main novel ideas of Motr, that distinguish it from other cluster file-systems a
* fops;
* distributed transaction manager (dt);
* resource manager (rm);
-* layouts, including parity de-clustering (pdclust);
+* layouts, including [parity de-clustering (pdclust)](https://github.com/Seagate/cortx-motr/blob/documentation/doc/pdclust/index.rst);
* containers;
* addb.
@@ -958,7 +958,7 @@ Legend:
## pdclust, idea
Parity de-clustering (pdclust) is a method to implement network RAID (also
-known as server network striping, SNS).
+known as server network striping, SNS). Additional details are available here: [pdclust](https://github.com/Seagate/cortx-motr/edit/main/doc/motr-in-prose.md#pdclust-idea)
pdclust consists of two components:
* pdclust layout. This is an algorithm and related code that determines how an
