GitHub Actions interface supports only a single input argument

Fixes #19

Author: mattt

README.md

@@ -152,7 +152,7 @@ or bundle them into a release artifact.
 ### Inputs
 
 - `inputs`:
-  One or more paths to Swift files in your workspace.
+  A path to a directory containing Swift (`.swift`) files in your workspace.
   (Default: `"./Sources"`)
 - `format`:
   The output format (`"commonmark"` or `"html"`)

action.yml

@@ -3,14 +3,14 @@ description: "Generates documentation for your Swift project"
 
 inputs:
   inputs:
-    description: "One or more paths to Swift files"
+    description: "A path to a directory containing Swift (`.swift`) files in your workspace"
     required: true
     default: "./Sources"
   module-name:
-    description: "The name of the module "
+    description: "The name of the module"
     required: true
   format:
-    description: "The output format"
+    description: "The output format (commonmark or html)"
     default: "commonmark"
   output:
     description: "The path for generated output"