Add MSRV version 1.45.2 and test build in CI (#35)

Author: h4sh3d

.github/workflows/ci.yml

@@ -14,9 +14,23 @@ jobs:
     name: Build
 
     runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        rust: [
+          1.45.2,
+          stable
+        ]
 
     steps:
     - uses: actions/checkout@v2.4.0
+
+    - name: Install Rust ${{ matrix.rust }}
+      uses: actions-rs/toolchain@v1.0.7
+      with:
+        toolchain: ${{ matrix.rust }}
+        override: true
+        profile: minimal
+
     - name: Build
       run: cargo build --verbose
 

README.md

@@ -2,6 +2,7 @@
 [![unsafe forbidden](https://img.shields.io/badge/unsafe-forbidden-success.svg)](https://github.com/rust-secure-code/safety-dance/)
 [![Crates.io](https://img.shields.io/crates/v/base58m.svg)](https://crates.io/crates/base58m)
 [![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT)
+[![MSRV](https://img.shields.io/badge/MSRV-1.45.2-blue)](https://blog.rust-lang.org/2020/08/03/Rust-1.45.2.html)
 
 `base58m`, a Rust Monero Base58 `base64`-like Binary
 ===