save generated site as github actions artifact.

Signed-off-by: Thorbjørn Ravn Andersen <thorbjoern@gmail.com>

Author: ravn

.github/workflows/maven.yml

@@ -24,3 +24,7 @@ jobs:
         cache: maven
     - name: Build with Maven
       run: mvn -B install --file pom.xml
+    - uses: actions/upload-artifact@v3
+      with:
+        name: sfl4j-site
+        path: target/site/

README.md

@@ -12,5 +12,5 @@ The command for "building" the site contents is:
 
 This copies html files from `src/site/pages/` folder to `target/site/` folder, performing variable replacements along the way.
 
-The local version of the website can then 'be navigated at
+The local version of the website can then be navigated at
 [target/site/index.html](target/site/index.html)