Document how to match any version

docs/cli/configuration.md

@@ -6,7 +6,7 @@ Any of the following can be used as the `verchew` configuration filename:
 * `verchew.ini`
 * `.verchew`
 * `.verchewrc`
-    
+
 # Version Arguments
 
 If one of your system dependencies uses an argument other than `--version` to display its version information, this can be changed in the configuration file using the `cli_version_arg` setting:
@@ -25,7 +25,7 @@ If the program lacks a specific argument to display its version, but contains ve
 [7-Zip]
 
 cli = 7z
-cli_version_arg = 
+cli_version_arg =
 version = 16
 ```
 
@@ -40,6 +40,16 @@ cli = python
 version = Python 2 || Python 3
 ```
 
+# Any Version
+
+If the version of a system dependency is not important to your project, leave out the `version` setting to simply check for the existence of that program:
+
+```ini
+[Hugo]
+
+cli = hugo
+```
+
 # Optional Programs
 
 If one of your system dependencies is optional and you only want to show a warning for incompatible versions, include the `optional` setting: