Fix doc build warnings

Issue-ID: DCAEGEN2-516
Change-Id: I94f1c7fcf5e4a21752c3ce9d8d71d98f2140e1ee
Signed-off-by: Lusheng Ji <lji@research.att.com>
diff --git a/docs/sections/components/component-development.rst b/docs/sections/components/component-development.rst
index 2877822..14a2d47 100644
--- a/docs/sections/components/component-development.rst
+++ b/docs/sections/components/component-development.rst
@@ -8,8 +8,11 @@
    :maxdepth: 1
 
    ./intro.rst
+   ./architecture/pieces.rst
+   ./architecture/service-discovery.rst
    ./requirements-guidelines.rst
    ./component-specification/component-specification.rst
+   ./component-json-schema.rst
    ./data-formats.rst
    ./dcae-cli/dcae-cli-tool.rst
    ./glossary.rst