how to create a query that paginates?

I created a query with pagination to retrieve issues from GitHub, following Mark Tiedemann's helpful post here. I thought I'd share for anyone else who may be needing to report on GitHub issues.

Here's my code:

let
 GitHubAPI = "https://api.github.com/search/issues?",
 Repository = "q=repo:OwnerName/RepositoryName+",
 SearchCriteria = "type:issue+state:open&",
 BaseUrl = GitHubAPI & Repository & SearchCriteria,
 
 EntitiesPerPage = 100,
 
 GetJson = (Url) =>
 let RawData = Web.Contents(Url),
 Json = Json.Document(RawData) 
 in Json,

 GetEntityCount = () =>
 let Url = BaseUrl,
 Json = GetJson(Url),
 Count = Json[#"total_count"]
 in Count,

 GetPage = (Index) =>
 let PerPage = "per_page=" & Text.From(EntitiesPerPage),
 Page = "page=" & Text.From(Index + 1),
 Url = BaseUrl & PerPage & "&" & Page,
 Json = GetJson(Url),
 Value = Json[#"items"]
 in Value,
 
 EntityCount = List.Max({ EntitiesPerPage, GetEntityCount() }),
 PageCount = Number.RoundUp(EntityCount / EntitiesPerPage),
 PageIndices = { 0 .. PageCount -1 },
 Pages = List.Transform(PageIndices, each GetPage(_)),
 Entities = List.Union(Pages),
 Table = Table.FromList(Entities, Splitter.SplitByNothing(), null, null, ExtraValues.Error)

in
    Table