feat: ignore .git and .github (#63)

* feat: ignore .git and .github

Close #57

* feat: update alpine to 3.11.0

cf. #64

Dockerfile

@@ -1,4 +1,4 @@
-FROM alpine:3.10.3
+FROM alpine:3.11.0
 
 RUN apk add --no-cache \
     bash \

README.md

@@ -70,6 +70,7 @@ Do you want to skip the docker build step? OK, the script mode is available.
   - [⭐️ Suppressing empty commits](#%EF%B8%8F-suppressing-empty-commits)
   - [⭐️ Keeping existing files](#%EF%B8%8F-keeping-existing-files)
   - [⭐️ Deploy to external repository](#%EF%B8%8F-deploy-to-external-repository)
+  - [⭐️ Force orphan](#%EF%B8%8F-force-orphan)
   - [⭐️ Script mode](#%EF%B8%8F-script-mode)
 - [Tips and FAQ](#tips-and-faq)
   - [⭐️ Use the latest and specific release](#%EF%B8%8F-use-the-latest-and-specific-release)
@@ -301,7 +302,7 @@ This allows you to make your publish branch with only the latest commit.
 
 ```yaml
 - name: Deploy
-  uses: peaceiris/actions-gh-pages@v2.6.0
+  uses: peaceiris/actions-gh-pages@v2
   env:
     ACTIONS_DEPLOY_KEY: ${{ secrets.ACTIONS_DEPLOY_KEY }}
     PUBLISH_BRANCH: gh-pages

entrypoint.sh

@@ -92,7 +92,7 @@ elif git clone --depth=1 --single-branch --branch "${remote_branch}" "${remote_r
         git rm -r --ignore-unmatch '*'
     fi
 
-    find "${GITHUB_WORKSPACE}/${PUBLISH_DIR}" -maxdepth 1 | \
+    find "${GITHUB_WORKSPACE}/${PUBLISH_DIR}" -maxdepth 1 -not -name ".git" -not -name ".github" | \
         tail -n +2 | \
         xargs -I % cp -rf % "${local_dir}/"
 else