Issue #396 - Merge Crypto REST API page with all other REST APIs page
Change the headers structure for better GitHub auto-outline feature work
Issue #344 - Replaced all classes names with interface names and type/method names with links to documentation
Small fix in code snippet
Add remark about using the proper `using` directive.
Add example for `IAsyncEnumerable<T>` helper usage for pagination.
Add short explanation about `IAsyncEnumerable<T>` helpers.
Issue #204 - some formatting changes
Issue #204 - client instantiation changes
Issue #167 - update Wiki page with updated code snippets
Update external documentation links
Provide more information about initial client object creation options.
Initial short description for Polygon REST API client
Initial short description for Alpaca REST API client part