Documentation: update C++ documentation links to target Developer Portal (#1106)

* Update doc links

* add fix for CI

* update doc with correct lbinks

* fix doc

* Revert "add fix for CI"

This reverts commit c76ae2d.

Author: anslpa

docs/source/concepts/waysofusing.rst

@@ -53,7 +53,7 @@ DPF offers multiple development APIs depending on your environment. These plugin
 
 - CPython based (see :ref:`user_guide_custom_operators`)
 
-- C++ based (see C++ documentation)
+- C++ based (see "DPF/USER GUIDE" section of `C++ documentation <https://developer.ansys.com/docs>`_)
 
 DPF integration
 ---------------

docs/source/index.rst

@@ -133,7 +133,7 @@ It is independent of the Ansys installer.
 
   1. The Data Processing Framework section in `Platform panel <https://ansysapi.ansys.com/account/secured?returnurl=/Views/Secured/main_page.html?lang=en>`_.
 
-  2. `Developer Portal <https://developer.ansys.com/product/DPF-Server-Client-Library/index.xhtml>`_
+  2. The Data Processing Framework section in `Developer Portal <https://developer.ansys.com/docs>`_
 
 - CPython modules documentation:
 
@@ -149,7 +149,7 @@ It is independent of the Ansys installer.
 
 **Enriching DPF capabilities**
 
-- C++ operator's library (see C++ documentation)
+- C++ operator's library (see "DPF/USER GUIDE" section of `C++ documentation <https://developer.ansys.com/docs>`_)
 
 - `C++ solver reader plugin <https://astonishing-hyacinth-e64.notion.site/How-to-write-a-new-solver-reader-as-a-DPF-s-plugin-bd2d2a3cf51f47ef9e70df45d64f89cb>`_