Add links to table files

examples/penguins/table/README.md

@@ -2,12 +2,12 @@
 
 This basic Nanobot example includes four tables:
 
-- `src/schema/`: schema for the data
-  - `table.tsv`: table definitions for all the tables
-  - `column.tsv`: column definitions for all the tables
-  - `datatype.tsv`: datatype definitions used by the columns
-- `src/data/`: penguin study data
-  - `penguin.tsv`: synthetic data about penguins
+- [`src/schema/`](src/schema/): schema for the data
+  - [`table.tsv`](src/schema/table.tsv): table definitions for all the tables
+  - [`column.tsv`](src/schema/column.tsv): column definitions for all the tables
+  - [`datatype.tsv`](src/schema/datatype.tsv): datatype definitions used by the columns
+- [`src/data/`](src/data/): penguin study data
+  - [`penguin.tsv`](src/data/penguin.tsv): synthetic data about penguins
 
 Run this example with `nanobot serve --connection :memory:`.
 See the [README](../README.md) in the parent directory for more information.