docs: Add installation instructions for DEB/RPM packages [ci skip]

Also add attribution badges for Cloudsmith which provide hosting for these packages.

See #197

Author: Envek

docs/full_guide.md

@@ -48,6 +48,28 @@ You can install lefthook [package](https://aur.archlinux.org/packages/lefthook)
 snap install --classic lefthook
 ```
 
+### APT packages for Debian/Ubuntu Linux
+
+```sh
+curl -1sLf 'https://dl.cloudsmith.io/public/evilmartians/lefthook/setup.deb.sh' | sudo -E bash
+sudo apt install lefthook
+```
+
+See all instructions: https://cloudsmith.io/~evilmartians/repos/lefthook/setup/#formats-deb
+
+[![Hosted By: Cloudsmith](https://img.shields.io/badge/OSS%20hosting%20by-cloudsmith-blue?logo=cloudsmith&style=flat-square)](https://cloudsmith.com "Debian package repository hosting is graciously provided by Cloudsmith")
+
+### RPM packages for CentOS/Fedora Linux
+
+```sh
+curl -1sLf 'https://dl.cloudsmith.io/public/evilmartians/lefthook/setup.rpm.sh' | sudo -E bash
+sudo yum install lefthook
+```
+
+See all instructions: https://cloudsmith.io/~evilmartians/repos/lefthook/setup/#repository-setup-yum
+
+[![Hosted By: Cloudsmith](https://img.shields.io/badge/OSS%20hosting%20by-cloudsmith-blue?logo=cloudsmith&style=flat-square)](https://cloudsmith.com "RPM package repository hosting is graciously provided by Cloudsmith")
+
 ### Anything else
 
 Or take it from [binaries](https://github.com/evilmartians/lefthook/releases) and install manually

docs/other.md

@@ -24,6 +24,28 @@ brew install lefthook
 snap install --classic lefthook
 ```
 
+### APT packages for Debian/Ubuntu Linux
+
+```sh
+curl -1sLf 'https://dl.cloudsmith.io/public/evilmartians/lefthook/setup.deb.sh' | sudo -E bash
+sudo apt install lefthook
+```
+
+See all instructions: https://cloudsmith.io/~evilmartians/repos/lefthook/setup/#formats-deb
+
+[![Hosted By: Cloudsmith](https://img.shields.io/badge/OSS%20hosting%20by-cloudsmith-blue?logo=cloudsmith&style=flat-square)](https://cloudsmith.com "Debian package repository hosting is graciously provided by Cloudsmith")
+
+### RPM packages for CentOS/Fedora Linux
+
+```sh
+curl -1sLf 'https://dl.cloudsmith.io/public/evilmartians/lefthook/setup.rpm.sh' | sudo -E bash
+sudo yum install lefthook
+```
+
+See all instructions: https://cloudsmith.io/~evilmartians/repos/lefthook/setup/#repository-setup-yum
+
+[![Hosted By: Cloudsmith](https://img.shields.io/badge/OSS%20hosting%20by-cloudsmith-blue?logo=cloudsmith&style=flat-square)](https://cloudsmith.com "RPM package repository hosting is graciously provided by Cloudsmith")
+
 ### AUR for Arch
 
 You can install lefthook [package](https://aur.archlinux.org/packages/lefthook) from AUR