Add man page to releases and man page generator to makefile

.goreleaser.yml

@@ -3,6 +3,8 @@ version: 2
 before:
   hooks:
     - go mod download
+    - go tool go-md2man -in README.md -out docs/git-get.1
+    - gzip -k docs/git-get.1
 
 builds:
   - id: git-get
@@ -86,6 +88,7 @@ brews:
     install: |
       bin.install "git-get"
       bin.install_symlink "git-get" => "git-list"
+      man1.install "docs/git-get.1"
     test: |
       system "#{bin}/git-get", "--version"
       system "#{bin}/git-list", "--version"
@@ -107,6 +110,10 @@ nfpms:
       - src: /usr/local/bin/git-get
         dst: /usr/local/bin/git-list
         type: "symlink"
+      - src: docs/git-get.1.gz
+        dst: /usr/share/man/man1/git-get.1.gz
+        file_info:
+          mode: 0644
 
 scoops:
   - name: git-get