Add Data Table reference docs. (#162)

* Initial UI commit.

Signed-off-by: Hannah Troisi <htroisi@pixielabs.ai>

* Initial docstring processing.

Signed-off-by: Hannah Troisi <htroisi@pixielabs.ai>

* Remove docstring parsing from PR.

Signed-off-by: Hannah Troisi <htroisi@pixielabs.ai>

* Get it working.

Signed-off-by: Hannah Troisi <htroisi@pixielabs.ai>

* Fix linting.

Signed-off-by: Hannah Troisi <htroisi@pixielabs.ai>

* Get it to work.

Signed-off-by: Hannah Troisi <htroisi@pixielabs.ai>

* Fix linting pt.2

Signed-off-by: Hannah Troisi <htroisi@pixielabs.ai>

* Separate json doc files.

Signed-off-by: Hannah Troisi <htroisi@pixielabs.ai>

* Add link to Data Sources page.

Signed-off-by: Hannah Troisi <htroisi@pixielabs.ai>

* Address Phillip's comments.

Signed-off-by: Hannah Troisi <htroisi@pixielabs.ai>

Author: htroisi

content/en/01-about-pixie/02-data-sources.md

@@ -45,6 +45,10 @@ Pixie automatically traces the following protocols:
 
 Additional protocols are under development.
 
+<Alert variant="outlined" severity="info">
+  See the <a href="/reference/datatables">data table reference docs</a> for the specific fields provided for each supported protocol.
+</Alert>
+
 ## Encryption Libraries
 
 Pixie supports tracing of traffic encrypted with the following libraries:

content/en/05-reference/index.md

@@ -26,6 +26,10 @@ order: 50
 - [Go Client Reference Docs](https://pkg.go.dev/px.dev/pxapi)
 - [Python Client Reference Docs](/reference/api/py)
 
+#### Data Tables
+
+- [Data Tables Overview](/reference/datatables)
+
 #### Plugins
 
 - [Grafana Datasource Plugin](/reference/plugins/grafana)