diff --git a/CMakeLists.txt b/CMakeLists.txt
index 6abd554..162936f 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,6 +1,6 @@
 cmake_minimum_required (VERSION 3.7)
 project (mastodon-cpp
-         VERSION 0.7.20
+         VERSION 0.7.21
          LANGUAGES CXX
 )
 
diff --git a/Doxyfile b/Doxyfile
index 2f36d41..d08f3ed 100644
--- a/Doxyfile
+++ b/Doxyfile
@@ -1,7 +1,7 @@
 DOXYFILE_ENCODING      = UTF-8
 PROJECT_NAME           = "mastodon-cpp"
 PROJECT_NUMBER         = 0.0.0
-INPUT                  = README.md src/ src/easy/
+INPUT                  = README.md src/ src/api/ src/easy/
 USE_MDFILE_AS_MAINPAGE = README.md
 CREATE_SUBDIRS         = NO
 ALLOW_UNICODE_NAMES    = YES
diff --git a/src/easy/easy.hpp b/src/easy/easy.hpp
index 360aa29..59e2b21 100644
--- a/src/easy/easy.hpp
+++ b/src/easy/easy.hpp
@@ -136,6 +136,9 @@ public:
     static const std::vector<stream_event>
         parse_stream(const std::string &streamdata);
 
+    /*!
+     *  @brief  Base class for all entities.
+     */
     class Entity
     {
     public:
diff --git a/src/mastodon-cpp.hpp b/src/mastodon-cpp.hpp
index c328864..354e83e 100644
--- a/src/mastodon-cpp.hpp
+++ b/src/mastodon-cpp.hpp
@@ -38,8 +38,9 @@
  *  @example example10_simplify.cpp
  *  @example example11_post_media.cpp
  *  @example example12_easy_laststatus.cpp
- *  @example example13_easy_laststatus.cpp
+ *  @example example13_easy_stream.cpp
  */
+
 namespace Mastodon
 {
 /*!