mastodon/gotosocial e2e tests: documentation changes (#1277)

Reviewed-on: https://code.forgejo.org/forgejo/end-to-end/pulls/1277
Reviewed-by: earl-warren <earl-warren@noreply.code.forgejo.org>
Co-authored-by: famfo <famfo@famfo.xyz>
Co-committed-by: famfo <famfo@famfo.xyz>

README.md

@@ -1,5 +1,18 @@
 # Forgejo end-to-end tests
 
+- [Forgejo end-to-end tests](#forgejo-end-to-end-tests)
+  - [Removing legacy tests](#removing-legacy-tests)
+  - [Hacking](#hacking)
+    - [Running from locally built binary](#running-from-locally-built-binary)
+      - [Forgejo](#forgejo)
+      - [Forgejo runner](#forgejo-runner)
+    - [Running from locally built container image](#running-from-locally-built-container-image)
+  - [Running actions tests locally](#running-actions-tests-locally)
+  - [Running federation tests locally](#running-federation-tests-locally)
+    - [Federated Mastodon Follow Test](#federated-mastodon-follow-test)
+  - [Running other tests locally](#running-other-tests-locally)
+  - [Running tests in Docker/Podman](#running-tests-in-dockerpodman)
+
 A series of tests scenarios and assertions covering
 [Forgejo](https://codeberg.org/forgejo/forgejo) and the [Forgejo
 runner](https://code.forgejo.org/forgejo/runner).
@@ -7,7 +20,7 @@ runner](https://code.forgejo.org/forgejo/runner).
 They are designed to run using Forgejo releases and development
 versions compiled from designated repositories.
 
-# Removing legacy tests
+## Removing legacy tests
 
 End-to-end tests cover the supported range of releases and when one of
 them is EOL, it must be removed as well as the tests that target it
@@ -17,7 +30,7 @@ When a release is EOL, a branch is cut with a name following the
 pattern `legacy/vX.Y-vA.B`. For instance when `v8.0` is published and
 `v1.21` is EOL, the branch `legacy/v8.0-v1.21` is cut.
 
-# Hacking
+## Hacking
 
 docker and sudo must be installed with insecure registries allowed in
 /etc/docker/daemon.json for the IP that will be used for forgejo such
@@ -46,12 +59,12 @@ git clone https://code.forgejo.org/forgejo/end-to-end
 cd end-to-end
 ```
 
-## Running from locally built binary
+### Running from locally built binary
 
 Before injecting a manually built binary, make sure a simple test was
 run so that the directories are populated.
 
-### Forgejo
+#### Forgejo
 
 From a checkout of https://codeberg.org/forgejo/forgejo/
 
@@ -62,7 +75,7 @@ cp -a forgejo /srv/forgejo-binaries/forgejo-11.0
 
 It will be used whenever the version `11.0` is specified in a test.
 
-### Forgejo runner
+#### Forgejo runner
 
 From a checkout of https://code.forgejo.org/forgejo/runner
 
@@ -71,6 +84,12 @@ make --always-make forgejo-runner
 cp forgejo-runner /tmp/forgejo-end-to-end/forgejo-runner
 ```
 
+### Running from locally built container image
+
+```bash
+docker buildx build --output=type=docker --tag codeberg.org/forgejo/forgejo:latest .
+```
+
 ## Running actions tests locally
 
 To run and debug workflows from `actions/example-*`, from the root of
@@ -103,7 +122,10 @@ the source directory, mimic what `.forgejo/workflows/end-to-end.yml` does.
 ./end-to-end.sh federation_setup 12.0
 firefox 0.0.0.0:3001 # user root / admin1234
 firefox 0.0.0.0:3002 # user root / admin1234
+firefox 0.0.0.0:3003 # user root / admin1234
 ./end-to-end.sh federation_verify_scenario star
+./end-to-end.sh federation_verify_scenario gotosocial
+./end-to-end.sh federation_verify_scenario mastodon
 ./end-to-end.sh federation_teardown
 ```