Add auto-publish to crates.io for 'release' CI workflow

.github/workflows/release.yml

@@ -12,6 +12,11 @@ jobs:
         with:
           ref: ${{ github.ref }}
 
+      - uses: actions-rs/toolchain@v1
+        with:
+          toolchain: stable
+          override: true
+
       - name: Parse release version
         id: release
         run: |
@@ -37,3 +42,9 @@ jobs:
             [API Docs](https://docs.rs/tracerr/${{ steps.release.outputs.VERSION }})
             [Changelog](${{ steps.changelog.outputs.LINK }})
           prerelease: ${{ contains(steps.release.outputs.VERSION, '-') }}
+
+      - name: Release on crates.io
+        uses: actions-rs/cargo@v1
+        with:
+          command: publish
+          args: --token ${{ secrets.CRATES_IO_TOKEN }}

Cargo.toml

@@ -13,6 +13,9 @@ keywords = ["backtrace", "error", "stacktrace", "tracing", "tracerr"]
 categories = []
 include = ["/src/", "/Cargo.toml", "/CHANGELOG.md", "/LICENSE.md", "/README.md"]
 
+[package.metadata.docs.rs]
+features = ["failure"]
+
 [dependencies]
 dm = { version = "0.99.2", package = "derive_more" }
 [dependencies.failure]

README.md

@@ -4,7 +4,7 @@ tracerr
 [![Latest version](https://img.shields.io/crates/v/tracerr)](https://crates.io/crates/tracerr)
 ![License](https://img.shields.io/crates/l/tracerr)
 ![Unsafe forbidden](https://img.shields.io/badge/unsafe-forbidden-success.svg)
-[![Rust docs](https://img.shields.io/badge/api-rustdoc-blue.svg)](https://docs.rs/tracerr)
+[![Rust docs](https://docs.rs/tracerr/badge.svg)](https://docs.rs/tracerr)
 
 [API Docs](https://docs.rs/tracerr) |
 [Changelog](https://github.com/instrumentisto/tracerr-rs/blob/master/CHANGELOG.md)