Merge pull request #124 from TorchJD/improve-aggregation-doc

Improve introduction to the base class Aggregator in doc

docs/source/docs/aggregation/index.rst

@@ -9,7 +9,8 @@ In the context of JD, the matrix to aggregate is a Jacobian whose rows are the g
 individual objectives. The aggregator is used to reduce this matrix into an update vector for the
 parameters of the model
 
-This package provides several aggregators from the literature:
+In TorchJD, an aggregator is a class that inherits from the abstract class
+:doc:`Aggregator <bases>`. We provide the following list of aggregators from the literature:
 
 .. role:: raw-html(raw)
    :format: html
@@ -21,7 +22,7 @@ This package provides several aggregators from the literature:
    :widths: 25 15 15 15
    :header-rows: 1
 
-   * - :doc:`Aggregator (abstract) <bases>`
+   * - :doc:`Aggregator <bases>`
      - :ref:`Non-conflicting <Non-conflicting>`
      - :ref:`Linear under scaling <Linear under scaling>`
      - :ref:`Weighted <Weighted>`