diff --git a/doc/pde-solvers.rst b/doc/pde-solvers.rst
index 6f7eed46d377e19862f297d31ec6d70f3846ed56..d93e49e5a6901c091f1e6672bc91bb2451b75943 100644
--- a/doc/pde-solvers.rst
+++ b/doc/pde-solvers.rst
@@ -1,3 +1,9 @@
 ===========
 PDE Solvers
 ===========
+
+Finite difference method
+
+    Elliptic problems
+
+    Parabolic problems
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