DOCSP-30350 add to toc tree and fix links

Author: mballard-mdb

source/crud.txt

@@ -32,3 +32,4 @@ CRUD Operations
 - :ref:`Collations <java-crud-collations>`
 - :ref:`Large File Storage with GridFS <java-crud-gridfs>`
 - :ref:`Configure Custom CRUD Settings <java-configure-custom-crud>`
+- :ref:`Write Operation Error Handling <java-operation-errors>`

source/operation-error-handling.txt

@@ -27,8 +27,8 @@ appropriate actions to either handle them or correct the error-causing code.
    any other issues with MongoDB or the driver, visit the following
    resources:
 
-    - :ref:`java-connection-troubleshooting` for potential solutions to
-     issues you might encounter when connecting to a MongoDB deployment
+    - :ref:`java-connection-troubleshooting` for potential solutions to issues
+      you might encounter when connecting to a MongoDB deployment
     - :ref:`java-issues-and-help` page for information about reporting bugs,
       contributing to the driver, and finding more resources
     - :community-forum:`MongoDB Community Forums </tag/java>` for questions,
@@ -42,21 +42,17 @@ returns an error of the `WriteError <{+core-api+}/WriteError.html>`__ type.
 
 The ``WriteError`` type contains the following methods: 
 
-    - ``getCode``: returns the code associated with this error.
-    - ``getMessage``: returns the message associated with this error.
-    - ``getDetails``: returns a BSON Document with details associated with this
+    - `getCode <{+core-api+}/WriteError.html#getCode()>`__: returns the code associated with this error.
+    - `getMessage <{+core-api+}/WriteError.html#getMessage()>`__: returns the message associated with this error.
+    - `getDetails <{+core-api+}/WriteError.html#getDetails()>`__: returns a BSON Document with details associated with this
       error, which may be empty.
-    - ``getCategory``: returns the category of the write error as an
-      `ErrorCategory<{+core-api+}/ErrorCategory.html>`__ object. The
-      enum ``ErrorCategory`` can be one of the following options:
+    - `getCategory <{+core-api+}/WriteError.html#getCategory()>`__: returns the category of the write error as an
+      `ErrorCategory <{+core-api+}/ErrorCategory.html>`__ object.
 
-      - ``DUPLICATE_KEY``: you provided duplicate key to a method
-      - ``EXECUTION_TIMEOUT``: the driver timed out
-      - ``UNCATEGORIZED``: the error has no category
-
-The `BulkWriteError<{+core-api+}/bulk/BulkWriteError.html>`__ type extends
+The `BulkWriteError <{+core-api+}/bulk/BulkWriteError.html>`__ type extends
 ``WriteError`` and inherits the above methods. The `WriteConcernError
-<{+core-api+}/bulk/WriteConcernError.html>`__ is not related to the ``WriteError`` type.
+<{+core-api+}/bulk/WriteConcernError.html>`__ is not related to the
+``WriteError`` type and details errors relating to the write concern.
 
 Write Error
 ~~~~~~~~~~~