docs: create bot comparison page

docs/usage/.pages

@@ -1,5 +1,6 @@
 nav:
   - Home: 'index.md'
+  - Bot comparison: 'bot-comparison.md'
   - Reading List: 'reading-list.md'
   - ... | getting-started
   - Troubleshooting: 'troubleshooting.md'

docs/usage/bot-comparison.md

@@ -0,0 +1,78 @@
+# Bot comparison
+
+This page explains the key differences between Renovate and Dependabot.
+
+## Table
+
+| Name of feature              | Dependabot                                                                                                                                                                   | Renovate                                                           |
+| ---------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------ |
+| Dependency Dashboard         | No                                                                                                                                                                           | Yes                                                                |
+| Grouped updates              | Yes, create [`groups`](https://docs.github.com/en/code-security/dependabot/dependabot-version-updates/configuration-options-for-the-dependabot.yml-file#groups) manually     | Yes, use community-provided groups, or create your own             |
+| Monorepo support             | unknown                                                                                                                                                                      | Yes                                                                |
+| Supported platforms          | GitHub only                                                                                                                                                                  | multiple                                                           |
+| Supported languages          | [List for Dependabot](https://docs.github.com/en/code-security/dependabot/dependabot-version-updates/about-dependabot-version-updates#supported-repositories-and-ecosystems) | [List for Renovate](https://docs.renovatebot.com/modules/manager/) |
+| Customizability              | low                                                                                                                                                                          | high                                                               |
+| Show changelogs              | yes                                                                                                                                                                          | yes                                                                |
+| Compatibility score badges   | 1                                                                                                                                                                            | 4                                                                  |
+| Built-in to GitHub           | yes                                                                                                                                                                          | no, requires app or self-hosting                                   |
+| Schedule interval            | yes: `daily`, `weekly`, `monthly`                                                                                                                                            | yes: custom                                                        |
+
+## Dependency Dashboard
+
+One big feature of Renovate is the Dependency Dashboard, which is enabled by default.
+Read the [Key concepts, Dependency Dashboard](https://docs.renovatebot.com/key-concepts/dashboard/) page to learn more.
+
+## Grouped updates
+
+Renovate comes with community-provided groupings of dependencies, so it will group common dependencies out-of-the-box.
+With Dependabot you'll have to set your own [`groups`](https://docs.github.com/en/code-security/dependabot/dependabot-version-updates/configuration-options-for-the-dependabot.yml-file#groups).
+
+## Monorepo support
+
+Renovate has a [`group:monorepos`](https://docs.renovatebot.com/presets-group/#groupmonorepos) preset, that groups dependencies from monorepos.
+
+I don't know if Dependabot supports monorepos.
+
+## Supported platforms
+
+Platform means the Git-hosting site or program, for example GitHub, GitLab or Azure.
+
+Dependabot only works on GitHub.
+
+Renovate works on multiple platforms, including GitHub.
+Read the [list of Renovate platforms](https://docs.renovatebot.com/modules/platform/) to learn more.
+
+## Supported languages
+
+- [Renovate's supported managers](https://docs.renovatebot.com/modules/manager/)
+- [Dependabot's supported repositories and ecosystems](https://docs.github.com/en/code-security/dependabot/dependabot-version-updates/about-dependabot-version-updates#supported-repositories-and-ecosystems)
+
+## Customizability
+
+Both Renovate and Dependabot come with good default settings.
+
+Renovate gives you more control over _when_ and _how_ you'll get the updates.
+Renovate gives you tools to reduce the "update noise", read our [Noise reduction](https://docs.renovatebot.com/noise-reduction/) page to learn more.
+
+## Show changelogs
+
+Renovate and Dependabot show changelogs in their PRs.
+
+## Compatiblity score badges
+
+Dependabot shows one compatibility score badge.
+This score tells you how many other repositories have passing CI tests for the proposed update.
+Read the [GitHub Docs, Dependabot's compatibility scores](https://docs.github.com/en/code-security/dependabot/dependabot-security-updates/about-dependabot-security-updates#about-compatibility-scores) to learn more about Dependabot's badge.
+
+Renovate has four _Merge Confidence_ badges:
+
+- **Age**: The age of the package
+- **Adoption**: The percentage of this package's users (within Renovate) which are using this release
+- **Passing**: The percentage of updates which have passing tests for this package
+- **Confidence**: The confidence level for this update
+
+Read the [Merge Confidence badges](https://docs.renovatebot.com/merge-confidence/) page to learn more.
+
+## Built-in to GitHub vs app
+
+Dependabot is built-in to GitHub, Renovate needs app installation or self-hosting.