Upgrade some crates, add new example

Author: TheBerkin

.vscode/settings.json

@@ -1,5 +1,5 @@
 {
     "editor.tabSize": 2,
     "rust-analyzer.cargo.allFeatures": true,
-    "files.autoSave": "afterDelay",
+    "files.autoSave": "off",
 }

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "rant"
-version = "4.0.0-alpha.32"
+version = "4.0.0-alpha.33"
 edition = "2021"
 description = "The Rant procedural templating language"
 license = "MIT OR Apache-2.0"
@@ -9,15 +9,16 @@ homepage = "https://rant-lang.org"
 keywords = ["rant", "templating", "procedural", "generation", "procgen"]
 categories = ["text-processing", "game-development", "template-engine"]
 readme = "README.md"
-rust-version = "1.58.1"
+rust-version = "1.61.0"
 include = [
   "**/*.rs", 
   "Cargo.toml",
   "README.md",
   "LICENSE*",
   "THIRD_PARTY_LICENSES*",
   "CHANGELOG.md",
-  "!tests/unincluded_*.rs"
+  "!tests/unincluded_*.rs",
+  "src/tools/cli/_*.txt"
 ]
 default-run = "rant"
 # publish = false
@@ -50,7 +51,7 @@ quickscope = "0.2.0"              # Powers the variable scoping system.
 rand = "0.8.3"                    # RNG utilities used throughout Rant.
 rand_xoshiro = "0.6.0"            # RNG implementation used by the Rant runtime.
 smallvec = "1.6.1"                # List optimization used throughout Rant.
-smartstring = "0.2.6"             # String optimization used throughout Rant.
+smartstring = "1.0.1"             # String optimization used throughout Rant.
 unicode-segmentation = "1.7.1"    # Used by Rant to index strings by grapheme cluster.
 
 # CLI

README.md

@@ -85,7 +85,7 @@ Rant's CLI can run Rant code from files or the command line.
 Install it from Cargo with:
 
 ```sh
-$ cargo install rant --version 4.0.0-alpha.32 --features cli
+$ cargo install rant --version 4.0.0-alpha.33 --features cli
 ```
 
 Then run it:

examples/cartesian-product.rant

@@ -0,0 +1,10 @@
+# Define A, B, and A x B
+<%a = (1; 2; 3)>
+<%b = (A; B; C)>
+<%axb = [tuple: ** <a>; ** <b> |> tuple]>
+
+# Display the results
+[ws-fmt: verbatim]
+A         = <a>\n
+B         = <b>\n
+A x B     = <axb>\n