update TOC

Author: mzihlmann

README.md

@@ -59,13 +59,6 @@ expect - see [Known Issues](#known-issues).
       - [Caching Layers](#caching-layers)
       - [Caching Base Images](#caching-base-images)
     - [Pushing to Different Registries](#pushing-to-different-registries)
-      - [Credential Provider Priorities](#credential-provider-priorities)
-      - [Pushing to Docker Hub](#pushing-to-docker-hub)
-      - [Pushing to Google GCR](#pushing-to-google-gcr)
-      - [Pushing to GCR using Workload Identity](#pushing-to-gcr-using-workload-identity)
-      - [Pushing to Amazon ECR](#pushing-to-amazon-ecr)
-      - [Pushing to Azure Container Registry](#pushing-to-azure-container-registry)
-      - [Pushing to JFrog Container Registry or to JFrog Artifactory](#pushing-to-jfrog-container-registry-or-to-jfrog-artifactory)
     - [Additional Flags](#additional-flags)
       - [Flag `--build-arg`](#flag---build-arg)
       - [Flag `--cache`](#flag---cache)
@@ -141,7 +134,6 @@ expect - see [Known Issues](#known-issues).
     - [Debug Image](#debug-image)
   - [Security](#security)
     - [Verifying Signed Kaniko Images](#verifying-signed-kaniko-images)
-  - [Kaniko Builds - Profiling](#kaniko-builds---profiling)
   - [Creating Multi-arch Container Manifests Using Kaniko and Manifest-tool](#creating-multi-arch-container-manifests-using-kaniko-and-manifest-tool)
     - [General Workflow](#general-workflow)
     - [Limitations and Pitfalls](#limitations-and-pitfalls)