add workflow to publish documentation

.github/workflows/documentation.yaml

@@ -0,0 +1,27 @@
+name: Documentation
+
+on:
+  push:
+    tags:
+      - '*'
+
+jobs:
+  build:
+    name: Build and publish documentation
+    runs-on: macos-latest
+    steps:
+      - uses: actions/checkout@v1
+
+      - name: Install doxygen
+        run: brew install doxygen
+
+      - name: Build
+        run: |
+          cmake -Hdocumentation -Bbuild
+          cmake --build build --target GenerateDocs
+
+      - name: Publish
+        uses: peaceiris/actions-gh-pages@v3
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          publish_dir: ./build/doxygen/html

README.md

@@ -123,6 +123,12 @@ See [here](https://github.com/TheLartians/StaticTypeInfo) for an example header-
 
 Simply remove the standalone / documentation directory and according github workflow file.
 
+> Can I build the standalone and tests at the same time?
+
+To keep the template modular, projects have been separated into their own CMake modules.
+However it's easy to create a new directory, say `all`, that uses CPM.cmake to add both the standalone and the tests (as well as any other subprojects).
+It's not recommended to include the standalone or tests from the main CMakeLists, as it will make the project mode difficult to be used as a library.
+
 > I see you are using `GLOB` to add source files in CMakeLists.txt. Isn't that evil?
 
 Glob is considered bad because any changes to the source file structure [might not be automatically caught](https://cmake.org/cmake/help/latest/command/file.html#filesystem) by CMake's builders and you will need to manually invoke CMake on changes.

include/greeter.h

@@ -8,7 +8,7 @@ namespace greeter {
   enum class LanguageCode { EN, DE, ES, FR };
 
   /**
-   * A class for greeting in multiple languages
+   * A class for saying hello in multiple languages
    */
   class Greeter {
     std::string name;

test/source/greeter.cpp

@@ -4,10 +4,10 @@
 TEST_CASE("Greeter") {
   using namespace greeter;
 
-  Greeter greeter("World");
+  Greeter greeter("Tests");
 
-  CHECK(greeter.greet(LanguageCode::EN) == "Hello, World!");
-  CHECK(greeter.greet(LanguageCode::DE) == "Hallo World!");
-  CHECK(greeter.greet(LanguageCode::ES) == "¡Hola World!");
-  CHECK(greeter.greet(LanguageCode::FR) == "Bonjour World!");
+  CHECK(greeter.greet(LanguageCode::EN) == "Hello, Tests!");
+  CHECK(greeter.greet(LanguageCode::DE) == "Hallo Tests!");
+  CHECK(greeter.greet(LanguageCode::ES) == "¡Hola Tests!");
+  CHECK(greeter.greet(LanguageCode::FR) == "Bonjour Tests!");
 }