yaa: add page (#4385)

pages/osx/yaa.md

@@ -0,0 +1,27 @@
+# yaa
+
+> Create and manipulate YAA archives.
+
+- Create an archive from a directory:
+
+`yaa archive -d {{path/to/directory}} -o {{path/to/output.yaa}}`
+
+- Create an archive from a file:
+
+`yaa archive -i {{path/to/file}} -o {{path/to/output.yaa}}`
+
+- Extract an archive to the current directory:
+
+`yaa extract -i {{path/to/archive.yaa}}`
+
+- List the contents of an archive:
+
+`yaa list -i {{path/to/archive.yaa}}`
+
+- Create an archive with a specific compression algorithm:
+
+`yaa archive -a {{algorithm}} -d {{path/to/directory}} -o {{path/to/output.yaa}}`
+
+- Create an archive with an 8MB block size:
+
+`yaa archive -b {{8m}} -d {{path/to/directory}} -o {{path/to/output.yaa}}`