CR follow-up: change directory structure

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

Author: jprinet

.github/composite/README.md renamed to .github/actions/gradle/README.md

@@ -9,25 +9,25 @@ Create a Github Action workflow, fulfilling the build requirements (add JDK...)
 ```yaml
 steps:
   # Download scripts latest version
-  - uses: gradle/gradle-enterprise-build-validation-scripts/.github/composite/getLatest@v1.0.2
+  - uses: gradle/gradle-enterprise-build-validation-scripts/.github/actions/gradle/download@v1.0.2
     with:
       token: ${{ secrets.GITHUB_TOKEN }}
   # Run experiment 1
-  - uses: gradle/gradle-enterprise-build-validation-scripts/.github/composite/exp1@v1.0.2
+  - uses: gradle/gradle-enterprise-build-validation-scripts/.github/actions/gradle/exp1@v1.0.2
     with:
       repositoryUrl: <PROJECT_GIT_URL>
       branch: <PROJECT_BRANCH>
       task: <PROJECT_BUILD_TASK>
       gradleEnterpriseUrl: <GRADLE_ENTERPRISE_URL>
   # Run experiment 2
-  - uses: gradle/gradle-enterprise-build-validation-scripts/.github/composite/exp2@v1.0.2
+  - uses: gradle/gradle-enterprise-build-validation-scripts/.github/actions/gradle/exp2@v1.0.2
     with:
       repositoryUrl: <PROJECT_GIT_URL>
       branch: <PROJECT_BRANCH>
       task: <PROJECT_BUILD_TASK>
       gradleEnterpriseUrl: <GRADLE_ENTERPRISE_URL>
   # Run experiment 3
-  - uses: gradle/gradle-enterprise-build-validation-scripts/.github/composite/exp3@v1.0.2
+  - uses: gradle/gradle-enterprise-build-validation-scripts/.github/actions/gradle/exp3@v1.0.2
     with:
       repositoryUrl: <PROJECT_GIT_URL>
       branch: <PROJECT_BRANCH>