Add Cirrus CI badge to manifest

Reflect changes from https://github.com/rust-lang/crates.io/pull/1782.

diff --git a/src/doc/src/reference/manifest.md b/src/doc/src/reference/manifest.md
index 9fc641584cb54613ceba03bece7bdf1522a6cbc6..8bc0cf3a07fe10e44f26c5d06149e469422b337b 100644 (file)
--- a/src/doc/src/reference/manifest.md
+++ b/src/doc/src/reference/manifest.md
@@ -269,7 +269,7 @@ license-file = "..."
 # Optional specification of badges to be displayed on crates.io.
 #
 # - The badges pertaining to build status that are currently available are
-#   Appveyor, CircleCI, GitLab, Azure DevOps and TravisCI.
+#   Appveyor, CircleCI, Cirrus CI, GitLab, Azure DevOps and TravisCI.
 # - Available badges pertaining to code test coverage are Codecov and
 #   Coveralls.
 # - There are also maintenance-related badges based on isitmaintained.com
@@ -290,6 +290,9 @@ appveyor = { repository = "...", branch = "master", service = "github" }
 # Circle CI: `repository` is required. `branch` is optional; default is `master`
 circle-ci = { repository = "...", branch = "master" }
 
+# Cirrus CI: `repository` is required. `branch` is optional; default is `master`
+cirrus-ci = { repository = "...", branch = "master" }
+
 # GitLab: `repository` is required. `branch` is optional; default is `master`
 gitlab = { repository = "...", branch = "master" }