Minor comment cleanup

http_examples.cpp

@@ -181,7 +181,7 @@ int main() {
         header.emplace("Content-Length", to_string(length));
         response->write(header);
 
-        // Trick to define a recursive function within this scope (for your convenience)
+        // Trick to define a recursive function within this scope (for example purposes)
         class FileServer {
         public:
           static void read_and_send(const shared_ptr<HttpServer::Response> &response, const shared_ptr<ifstream> &ifs) {

https_examples.cpp

@@ -179,7 +179,7 @@ int main() {
         header.emplace("Content-Length", to_string(length));
         response->write(header);
 
-        // Trick to define a recursive function within this scope (for your convenience)
+        // Trick to define a recursive function within this scope (for example purposes)
         class FileServer {
         public:
           static void read_and_send(const shared_ptr<HttpsServer::Response> &response, const shared_ptr<ifstream> &ifs) {

utility.hpp

@@ -285,7 +285,7 @@ namespace SimpleWeb {
         return std::unique_ptr<SharedLock>(new SharedLock(count));
     }
 
-    //// Blocks until all shared locks are released, then prevents future shared locks
+    /// Blocks until all shared locks are released, then prevents future shared locks
     void stop() noexcept {
       long expected = 0;
       while(!count.compare_exchange_weak(expected, -1)) {