protected override async Task OnAfterRenderAsync()
{
var fileContent = await gitHubService.ReadTextFileAsync("articles/app-service/toc.yml");
var toc = (BlazorAzureDoc.Client.Utils.Convert.FromYamlToObject(fileContent)).ToList <TocEntry>();
var vis = BlazorAzureDoc.Client.Utils.Convert.FromTocEntryToNodesEdges(toc);
await Javascript.LoadVis("vis-network", vis.nodes, vis.edges);
}