[DOCS] Restructures repo README

[szabosteve]

Overview

This PR adds links to the different sections of the README file that point to the corresponding section of the getting started page. This way only the getting started documentation needs to be maintained and it will be the source of truth.

Should be backported to 8.1.

[flobernd]

LGTM!

[github-actions]

The backport to 8.1 failed:

The process '/usr/bin/git' failed with exit code 1

To backport manually, run these commands in your terminal:

# Fetch latest updates from GitHub
git fetch
# Create a new working tree
git worktree add .worktrees/backport-8.1 8.1
# Navigate to the new working tree
cd .worktrees/backport-8.1
# Create a new branch
git switch --create backport-7843-to-8.1
# Cherry-pick the merged commit of this pull request and resolve the conflicts
git cherry-pick --mainline 1 c60cdc56f69624013c26b2a3aea0a5a31be915ec
# Push it to GitHub
git push --set-upstream origin backport-7843-to-8.1
# Go back to the original working tree
cd ../..
# Delete the working tree
git worktree remove .worktrees/backport-8.1

Then, create a pull request where the base branch is 8.1 and the compare/head branch is backport-7843-to-8.1.

[github-actions]

The backport to 8.2 failed:

The process '/usr/bin/git' failed with exit code 1

To backport manually, run these commands in your terminal:

# Fetch latest updates from GitHub
git fetch
# Create a new working tree
git worktree add .worktrees/backport-8.2 8.2
# Navigate to the new working tree
cd .worktrees/backport-8.2
# Create a new branch
git switch --create backport-7843-to-8.2
# Cherry-pick the merged commit of this pull request and resolve the conflicts
git cherry-pick --mainline 1 c60cdc56f69624013c26b2a3aea0a5a31be915ec
# Push it to GitHub
git push --set-upstream origin backport-7843-to-8.2
# Go back to the original working tree
cd ../..
# Delete the working tree
git worktree remove .worktrees/backport-8.2

Then, create a pull request where the base branch is 8.2 and the compare/head branch is backport-7843-to-8.2.

[github-actions]

The backport to 8.3 failed:

The process '/usr/bin/git' failed with exit code 1

To backport manually, run these commands in your terminal:

# Fetch latest updates from GitHub
git fetch
# Create a new working tree
git worktree add .worktrees/backport-8.3 8.3
# Navigate to the new working tree
cd .worktrees/backport-8.3
# Create a new branch
git switch --create backport-7843-to-8.3
# Cherry-pick the merged commit of this pull request and resolve the conflicts
git cherry-pick --mainline 1 c60cdc56f69624013c26b2a3aea0a5a31be915ec
# Push it to GitHub
git push --set-upstream origin backport-7843-to-8.3
# Go back to the original working tree
cd ../..
# Delete the working tree
git worktree remove .worktrees/backport-8.3

Then, create a pull request where the base branch is 8.3 and the compare/head branch is backport-7843-to-8.3.

[github-actions]

The backport to 8.4 failed:

The process '/usr/bin/git' failed with exit code 1

To backport manually, run these commands in your terminal:

# Fetch latest updates from GitHub
git fetch
# Create a new working tree
git worktree add .worktrees/backport-8.4 8.4
# Navigate to the new working tree
cd .worktrees/backport-8.4
# Create a new branch
git switch --create backport-7843-to-8.4
# Cherry-pick the merged commit of this pull request and resolve the conflicts
git cherry-pick --mainline 1 c60cdc56f69624013c26b2a3aea0a5a31be915ec
# Push it to GitHub
git push --set-upstream origin backport-7843-to-8.4
# Go back to the original working tree
cd ../..
# Delete the working tree
git worktree remove .worktrees/backport-8.4

Then, create a pull request where the base branch is 8.4 and the compare/head branch is backport-7843-to-8.4.

[github-actions]

The backport to 8.5 failed:

The process '/usr/bin/git' failed with exit code 1

To backport manually, run these commands in your terminal:

# Fetch latest updates from GitHub
git fetch
# Create a new working tree
git worktree add .worktrees/backport-8.5 8.5
# Navigate to the new working tree
cd .worktrees/backport-8.5
# Create a new branch
git switch --create backport-7843-to-8.5
# Cherry-pick the merged commit of this pull request and resolve the conflicts
git cherry-pick --mainline 1 c60cdc56f69624013c26b2a3aea0a5a31be915ec
# Push it to GitHub
git push --set-upstream origin backport-7843-to-8.5
# Go back to the original working tree
cd ../..
# Delete the working tree
git worktree remove .worktrees/backport-8.5

Then, create a pull request where the base branch is 8.5 and the compare/head branch is backport-7843-to-8.5.

[github-actions]

The backport to 8.6 failed:

The process '/usr/bin/git' failed with exit code 1

To backport manually, run these commands in your terminal:

# Fetch latest updates from GitHub
git fetch
# Create a new working tree
git worktree add .worktrees/backport-8.6 8.6
# Navigate to the new working tree
cd .worktrees/backport-8.6
# Create a new branch
git switch --create backport-7843-to-8.6
# Cherry-pick the merged commit of this pull request and resolve the conflicts
git cherry-pick --mainline 1 c60cdc56f69624013c26b2a3aea0a5a31be915ec
# Push it to GitHub
git push --set-upstream origin backport-7843-to-8.6
# Go back to the original working tree
cd ../..
# Delete the working tree
git worktree remove .worktrees/backport-8.6

Then, create a pull request where the base branch is 8.6 and the compare/head branch is backport-7843-to-8.6.

[github-actions]

The backport to 8.7 failed:

The process '/usr/bin/git' failed with exit code 1

To backport manually, run these commands in your terminal:

# Fetch latest updates from GitHub
git fetch
# Create a new working tree
git worktree add .worktrees/backport-8.7 8.7
# Navigate to the new working tree
cd .worktrees/backport-8.7
# Create a new branch
git switch --create backport-7843-to-8.7
# Cherry-pick the merged commit of this pull request and resolve the conflicts
git cherry-pick --mainline 1 c60cdc56f69624013c26b2a3aea0a5a31be915ec
# Push it to GitHub
git push --set-upstream origin backport-7843-to-8.7
# Go back to the original working tree
cd ../..
# Delete the working tree
git worktree remove .worktrees/backport-8.7

Then, create a pull request where the base branch is 8.7 and the compare/head branch is backport-7843-to-8.7.