docs(readme): add "build from source" section to README.md

README.md

@@ -43,7 +43,8 @@
 - [Installation](#installation)
   - [From crates.io](#from-cratesio)
   - [Using pacman](#using-pacman)
-  - [Binary Releases](#binary-releases)
+  - [Binary releases](#binary-releases)
+  - [Build from source](#build-from-source)
 - [Usage](#usage)
   - [Command Line Arguments](#command-line-arguments)
   - [Examples](#examples)
@@ -104,12 +105,21 @@ If you are using Arch Linux, **git-cliff** can be installed from the [community
 pacman -S git-cliff
 ```
 
-### Binary Releases
+### Binary releases
 
 See the available binaries for different operating systems/architectures from the [releases page](https://github.com/orhun/git-cliff/releases).
 
 \* Release tarballs are signed with the following PGP key: [1D2D410A741137EBC544826F4A92FA17B6619297](https://keyserver.ubuntu.com/pks/lookup?search=0x4A92FA17B6619297&op=vindex)
 
+### Build from source
+
+* Linux dependencies: [zlib](https://zlib.net/)
+
+```sh
+# binary will be located at `target/release/git-cliff`
+CARGO_TARGET_DIR=target cargo build --release
+```
+
 ## Usage
 
 ### Command Line Arguments