diff --git a/Cargo.lock b/Cargo.lock
index c4e3b92..236e11f 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1120,7 +1120,7 @@ dependencies = [
 
 [[package]]
 name = "mps"
-version = "0.3.0"
+version = "0.4.0"
 dependencies = [
  "clap 3.0.12",
  "mps-interpreter",
@@ -1129,7 +1129,7 @@ dependencies = [
 
 [[package]]
 name = "mps-interpreter"
-version = "0.3.0"
+version = "0.4.0"
 dependencies = [
  "bliss-audio",
  "dirs",
@@ -1141,7 +1141,7 @@ dependencies = [
 
 [[package]]
 name = "mps-player"
-version = "0.3.0"
+version = "0.4.0"
 dependencies = [
  "m3u8-rs",
  "mpris-player",
diff --git a/Cargo.toml b/Cargo.toml
index fa6b610..8ce5399 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,13 +1,14 @@
 [package]
 name = "mps"
-version = "0.3.0"
+version = "0.4.0"
 edition = "2021"
 authors = ["NGnius (Graham) <ngniusness@gmail.com>"]
-description = "Music Playlist Scripting language (MPS)"
+description = "Music Playlist Script language (MPS)"
 license = "LGPL-2.1-only OR GPL-2.0-or-later"
 repository = "https://github.com/NGnius/mps"
 keywords = ["audio", "playlist", "scripting", "language"]
 readme = "README.md"
+exclude = ["extras/"]
 
 [workspace]
 members = [
@@ -17,14 +18,14 @@ members = [
 
 [dependencies]
 # local
-mps-interpreter = { version = "0.3.0", path = "./mps-interpreter" }
+mps-interpreter = { version = "0.4.0", path = "./mps-interpreter" }
 # external
 clap = { version = "3.0", features = ["derive"] }
 # termios = { version = "^0.3"}
 
 [target.'cfg(not(target_os = "linux"))'.dependencies]
-mps-player = { version = "0.3.0", path = "./mps-player", default-features = false }
+mps-player = { version = "0.4.0", path = "./mps-player", default-features = false }
 
 [target.'cfg(target_os = "linux")'.dependencies]
 # TODO fix need to specify OS-specific dependency of mps-player
-mps-player = { version = "0.3.0", path = "./mps-player", features = ["mpris-player"] }
+mps-player = { version = "0.4.0", path = "./mps-player", features = ["mpris-player"] }
diff --git a/README.md b/README.md
index 95e29f9..f0d3b06 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,7 @@
 # mps
 
+![repl_demo](https://raw.githubusercontent.com/NGnius/mps/master/extras/demo.png)
+
 A language all about iteration to play your music files.
 This project implements the interpreter (mps-interpreter), music player (mps-player), and CLI interface for MPS (root).
 The CLI interface includes a REPL for running scripts.
@@ -30,4 +32,6 @@ One day I'll add pretty REPL example pictures and some script files...
 **No**. Technically, it was designed to be one, but it doesn't meet the requirements of a scripting language (yet). One day, I would like it be Turing-complete and then it could be considered a scripting language. At the moment it is barely a query language.
 
 
-License: LGPL-2.1-only OR GPL-2.0-or-later
+### Contribution
+
+This is a hobby project, so any contribution may take a while to be acknowledged and accepted.
diff --git a/README.tpl b/README.tpl
new file mode 100644
index 0000000..7aaeebf
--- /dev/null
+++ b/README.tpl
@@ -0,0 +1,9 @@
+# {{crate}}
+
+![repl_demo](https://raw.githubusercontent.com/NGnius/mps/master/extras/demo.png)
+
+{{readme}}
+
+### Contribution
+
+This is a hobby project, so any contribution may take a while to be acknowledged and accepted.
diff --git a/extras/demo.png b/extras/demo.png
new file mode 100644
index 0000000..dfa320e
Binary files /dev/null and b/extras/demo.png differ
diff --git a/mps-interpreter/Cargo.toml b/mps-interpreter/Cargo.toml
index 21c68c8..a3abc44 100644
--- a/mps-interpreter/Cargo.toml
+++ b/mps-interpreter/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "mps-interpreter"
-version = "0.3.0"
+version = "0.4.0"
 edition = "2021"
 license = "LGPL-2.1-only OR GPL-2.0-or-later"
 readme = "README.md"
diff --git a/mps-player/Cargo.toml b/mps-player/Cargo.toml
index fa88bbc..d582e78 100644
--- a/mps-player/Cargo.toml
+++ b/mps-player/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "mps-player"
-version = "0.3.0"
+version = "0.4.0"
 edition = "2021"
 license = "LGPL-2.1-only OR GPL-2.0-or-later"
 readme = "README.md"
@@ -10,7 +10,7 @@ rodio = { version = "^0.14"}
 m3u8-rs = { version = "^3.0.0" }
 
 # local
-mps-interpreter = { path = "../mps-interpreter", version = "0.3.0" }
+mps-interpreter = { path = "../mps-interpreter", version = "0.4.0" }
 
 [target.'cfg(target_os = "linux")'.dependencies]
 #dbus = { version = "^0.9" }