rename README.md to index.md, to avoid broken link alerts

mdbook renders README.md files as index.html,
so linking to README.md results in 404 errors.

Author: tshepang

README.md

@@ -72,12 +72,12 @@ First, please send a PR to add your team to the [`repos/rust-lang/rust-forge.tom
 To add your team to the book, add it to [`src/SUMMARY.md`], like below, replacing `<TEAM_NAME>` with a filesystem- and URL-friendly version of your team's name:
 
 ```markdown
-- [<TEAM NAME>](src/<TEAM_NAME>/README.md)
+- [<TEAM NAME>](src/<TEAM_NAME>/index.md)
 ```
 
 If you run `mdbook build`, `mdbook` will automatically create the folder and file for your team.
 
-It's recommended that you put general team information in `src/<TEAM_NAME>/README.md`, such as where the meetings happen, repositories that the team manages, links to chat platforms, etc. Larger topics should be made as a subpage, e.g. (`src/release/topic.md`).
+It's recommended that you put general team information in `src/<TEAM_NAME>/index.md`, such as where the meetings happen, repositories that the team manages, links to chat platforms, etc. Larger topics should be made as a subpage, e.g. (`src/release/topic.md`).
 
 ```markdown
 - [TOPIC](src/<TEAM_NAME>/TOPIC.md)

src/SUMMARY.md

@@ -1,9 +1,9 @@
 # Rust Forge
 
-[Overview](./README.md)
+[Overview](./index.md)
 - [How to start contributing](./how-to-start-contributing.md)
 - [Onboarding to the project](./onboarding.md)
-- [Platforms](./platforms/README.md)
+- [Platforms](./platforms/index.md)
   - [Twitter](./platforms/twitter.md)
   - [Discord](./platforms/discord.md)
   - [Email](./platforms/email.md)
@@ -12,7 +12,7 @@
       - [Moderation](./platforms/zulip/moderation.md)
   - [Blogs](./platforms/blogs.md)
   - [Calendars](./platforms/calendars.md)
-- [Triagebot](./triagebot/README.md)
+- [Triagebot](./triagebot/index.md)
     - [Agenda Generator](./triagebot/agenda.md)
     - [Issue Assignment](./triagebot/issue-assignment.md)
     - [PR Assignment](./triagebot/pr-assignment.md)
@@ -47,8 +47,8 @@
     - [Zulip Meeting Management](./triagebot/zulip-meeting.md)
     - [Zulip Notifications](./triagebot/zulip-notifications.md)
     - [GitHub Actions created PR open/closer](./triagebot/bot-pull-requests.md)
-- [Community](./community/README.md)
-- [Compiler](./compiler/README.md)
+- [Community](./community/index.md)
+- [Compiler](./compiler/index.md)
     - [Calendar](./compiler/calendar.md)
     - [Cross-team Collaboration](./compiler/cross-team-collaboration.md)
     - [Meetings](./compiler/meetings.md)
@@ -64,32 +64,32 @@
     - [Triage and Prioritization](./compiler/prioritization.md)
     - [Working Areas](./compiler/working-areas.md)
     - [Operations](./compiler/operations.md)
-- [rustc-dev-guide](./wg-rustc-dev-guide/README.md)
-- [crates.io](./crates-io/README.md)
+- [rustc-dev-guide](./wg-rustc-dev-guide/index.md)
+- [crates.io](./crates-io/index.md)
     - [Crate removal](./crates-io/crate-removal.md)
     - [Database maintenance](./crates-io/db-maintenance.md)
-- [docs.rs](./docs-rs/README.md)
+- [docs.rs](./docs-rs/index.md)
   - [Adding dependencies to the build environment](./docs-rs/add-dependencies.md)
   - [Self-hosting a docs.rs instance](./docs-rs/self-hosting.md)
   - [Maintenance procedures](./docs-rs/maintenance.md)
-- [Governance](./governance/README.md)
+- [Governance](./governance/index.md)
     - [Leadership Council](./governance/council.md)
     - [Moderation](./governance/moderation.md)
     - [Project groups](./governance/project-groups.md)
-- [Policies](./policies/README.md)
+- [Policies](./policies/index.md)
     - [Crate ownership policy](./policies/crate-ownership.md)
-- [Infrastructure](./infra/README.md)
+- [Infrastructure](./infra/index.md)
     - [Other Installation Methods](./infra/other-installation-methods.md)
     - [Archive of Rust Stable Standalone Installers](./infra/archive-stable-version-installers.md)
     - [Release Channel Layout](./infra/channel-layout.md)
     - [Service Infrastructure](./infra/service-infrastructure.md)
     - [Team Maintenance](./infra/team-maintenance.md)
     - [The Toolstate System](./infra/toolstate.md)
-    - [Policies](./infra/policies/README.md)
+    - [Policies](./infra/policies/index.md)
         - [Broken nightlies](./infra/policies/broken-nightlies.md)
-    - [Guidelines](./infra/guidelines/README.md)
+    - [Guidelines](./infra/guidelines/index.md)
         - [Static websites](./infra/guidelines/static-websites.md)
-    - [Documentation](./infra/docs/README.md)
+    - [Documentation](./infra/docs/index.md)
         - [AWS access for team members](./infra/docs/aws-access.md)
         - [AWS access management](./infra/docs/aws-access-management.md)
         - [AWS regions](./infra/docs/aws-regions.md)
@@ -108,13 +108,13 @@
         - [rust-bots server](./infra/docs/rust-bots.md)
         - [rust-lang/rust CI](./infra/docs/rustc-ci.md)
         - [Sentry](./infra/docs/sentry.md)
-- [Language](./lang/README.md)
+- [Language](./lang/index.md)
     - [RFC Merge Procedure](./lang/rfc-merge-procedure.md)
     - [Triage Meeting Procedure](./lang/triage-meeting-procedure.md)
     - [Stabilization procedure](./lang/stabilization-procedure.md)
-- [Libs](./libs/README.md)
+- [Libs](./libs/index.md)
     - [Maintaining the standard library](./libs/maintaining-std.md)
-- [Release](./release/README.md)
+- [Release](./release/index.md)
     - [Backporting](./release/backporting.md)
     - [Preparing Release Notes](./release/release-notes.md)
     - [Release Process](./release/process.md)
@@ -123,6 +123,6 @@
     - [Issue Triaging](./release/issue-triaging.md)
     - [Triaging Crater Runs](./release/crater.md)
 - [Edition Releases](./editions/edition-releases.md)
-- [Archive](./archive/README.md)
+- [Archive](./archive/index.md)
     - [Friends of the Tree](./archive/fott.md)
     - [Release History](./archive/release-history.md)

src/archive/README.md renamed to src/archive/index.md

@@ -68,7 +68,7 @@ stable point release.
 
 ## How are approved backports handled?
 
-The [release team](../release/README.md) (`T-release`) will handle the backport at the end of the
+The [release team](../release/index.md) (`T-release`) will handle the backport at the end of the
 current development cycle (see [release backporting](../release/backporting.md)). If a beta backport
 nomination is approved too late, the release team may be unable to backport the change.
 

src/community/README.md renamed to src/community/index.md

@@ -5,7 +5,7 @@ This team discusses membership in the compiler team. There are currently two lev
 * maintainers: members who have committed themselves to invest in the quality of the compiler and
   health of the compiler team
 
-[infrastructure]: ../infra/README.md
+[infrastructure]: ../infra/index.md
 
 ## The path to membership
 People who are looking to contribute to the compiler typically start in one of two ways. They may 

src/compiler/backports.md

@@ -49,7 +49,7 @@ Documentation on rfcbot commands can be found
 [rustbot](https://github.com/rust-lang/triagebot) is a bot ([bot user
 account](https://github.com/rustbot)) to assist with managing issues and PRs
 to allow users to label and assign without GitHub permissions. See
-[triagebot](../triagebot) for more information.
+[triagebot](../triagebot/index.md) for more information.
 
 ## DXR
 

src/compiler/README.md renamed to src/compiler/index.md

@@ -108,4 +108,4 @@ To add a new tool to be tracked, the following steps must be taken:
 [subup]: https://github.com/ehuss/subup
 [toolstate]: https://rust-lang-nursery.github.io/rust-toolstate/
 [toolstate repository]: https://github.com/rust-lang-nursery/rust-toolstate/
-[forge]: ../README.md
+[forge]: ../index.md