chore: add README

Signed-off-by: moul <[email protected]>

contribs/gnokeykc/README.md

@@ -0,0 +1,16 @@
+# `gnokeykc`
+
+`gnokeykc` is a Go-based CLI tool that enhances [`gnokey`](../../gno.land/cmd/gnokey) by integrating with your system's keychain. It adds `gnokey kc ...` subcommands to set and unset passwords in the keychain, allowing Gnokey to fetch passwords directly from the keychain instead of prompting for terminal input.
+
+## Usage
+
+    gnokey kc -h
+
+## Terminal Alias
+
+For ease of use, set up a terminal alias to replace `gnokey` with `gnokeykc`:
+
+    echo "alias gnokey='gnokeykc'" >> ~/.bashrc && source ~/.bashrc
+
+Now, `gnokey` commands will use `gnokeykc`, fetching passwords from the keychain.
+