diff --git a/goroutine.md b/goroutine.md
index f828a4a..a4e5483 100644
--- a/goroutine.md
+++ b/goroutine.md
@@ -2,6 +2,21 @@ This document was last updated for `go1.15.6` but probably still applies to olde
 
 # Goroutine Profiling in Go
 
+- [Goroutine Profiling in Go](#goroutine-profiling-in-go)
+  * [Description](#description)
+  * [Overhead](#overhead)
+  * [Goroutine Properties](#goroutine-properties)
+  * [APIs](#apis)
+    + [[`runtime.Stack()`](https://golang.org/pkg/runtime/#Stack) /  [`pprof.Lookup(debug=2)`](https://golang.org/pkg/runtime/pprof/#Lookup)](#--runtimestack-----https---golangorg-pkg-runtime--stack-------pproflookup-debug-2----https---golangorg-pkg-runtime-pprof--lookup-)
+    + [[`pprof.Lookup(debug=1)`](https://golang.org/pkg/runtime/pprof/#Lookup)](#--pproflookup-debug-1----https---golangorg-pkg-runtime-pprof--lookup-)
+    + [[`pprof.Lookup(debug=0)`](https://golang.org/pkg/runtime/pprof/#Lookup)](#--pproflookup-debug-0----https---golangorg-pkg-runtime-pprof--lookup-)
+    + [[`runtime.GoroutineProfile()`](https://golang.org/pkg/runtime/#GoroutineProfile)](#--runtimegoroutineprofile-----https---golangorg-pkg-runtime--goroutineprofile-)
+    + [[`net/http/pprof`](https://golang.org/pkg/net/http/pprof/)](#--net-http-pprof---https---golangorg-pkg-net-http-pprof--)
+  * [History](#history)
+  * [Disclaimers](#disclaimers)
+
+## Description
+
 The Go runtime keeps track of all goroutines in a simple slice called [allgs](https://github.com/golang/go/blob/3a778ff50f7091b8a64875c8ed95bfaacf3d334c/src/runtime/proc.go#L500). It contains both active and dead goroutines. The latter are kept around for reuse when new goroutines are spawned.
 
 Go has various APIs to inspect the active goroutines in `allgs` along with their current stack trace, as well as various other properties. Some APIs expose this information as statistical summaries, while other APIs provide information for each individual goroutine.