Add parameters description

Signed-off-by: Jerome Prinet <jprinet@gradle.com>

Author: jprinet

.github/composite/exp1/action.yml

@@ -1,18 +1,19 @@
 name: Run experiment 1
+description: 'Run Gradle Experiment 1'
 
 inputs:
   repositoryUrl:
+    description: Project repository URL
     required: true
-    type: string
   branch:
+    description: Git Branch
     required: true
-    type: string
   task:
+    description: Gradle task
     required: true
-    type: string
   gradleEnterpriseUrl:
+    description: Gradle Enterprise URL
     required: true
-    type: string
 
 runs:
   using: "composite"

.github/composite/exp2/action.yml

@@ -1,18 +1,19 @@
 name: Run experiment 2
+description: 'Run Gradle Experiment 2'
 
 inputs:
   repositoryUrl:
+    description: Project repository URL
     required: true
-    type: string
   branch:
+    description: Git Branch
     required: true
-    type: string
   task:
+    description: Gradle task
     required: true
-    type: string
   gradleEnterpriseUrl:
+    description: Gradle Enterprise URL
     required: true
-    type: string
 
 runs:
   using: "composite"

.github/composite/exp3/action.yml

@@ -1,18 +1,19 @@
 name: Run experiment 3
+description: 'Run Gradle Experiment 3'
 
 inputs:
   repositoryUrl:
+    description: Project repository URL
     required: true
-    type: string
   branch:
+    description: Git Branch
     required: true
-    type: string
   task:
+    description: Gradle task
     required: true
-    type: string
   gradleEnterpriseUrl:
+    description: Gradle Enterprise URL
     required: true
-    type: string
 
 runs:
   using: "composite"

.github/composite/getLatest/action.yml

@@ -1,4 +1,5 @@
 name: Get latest release
+description: 'Install Scripts latest release'
 
 runs:
   using: "composite"