Doc: add missing doc for parameters

qhstspolicy.cpp:105: warning: Undocumented parameter 'flags' in QHstsPolicy::QHstsPolicy()
qhstspolicy.cpp:105: warning: No such parameter 'includeSubDomains' in QHstsPolicy::QHstsPolicy()
qnetworkaccessmanager.cpp:732: warning: Undocumented parameter 'knownHosts' in QNetworkAccessManager::addStrictTransportSecurityHosts()

Change-Id: I24217d328df12febab30e19e2abd351e87007959
Reviewed-by: Frederik Gladhorn <frederik.gladhorn@qt.io>

src/network/access/qhstspolicy.cpp

@@ -103,11 +103,11 @@ QHstsPolicy::QHstsPolicy() : d(new QHstsPolicyPrivate)
 }
 
 /*!
-    Constructs QHstsPolicy with \a expiry (in UTC); \a includeSubDomains parameter
-    defines if this policy must also include subdomains, \a host data is interpreted
-    according to \a mode.
+    Constructs QHstsPolicy with \a expiry (in UTC):
+    - \a host data is interpreted according to \a mode;
+    - \a flags selects options to apply to this policy.
 
-    \sa QUrl::setHost(), QUrl::ParsingMode
+    \sa QUrl::setHost(), QUrl::ParsingMode, QHstsPolicy::PolicyFlag
 */
 QHstsPolicy::QHstsPolicy(const QDateTime &expiry, PolicyFlags flags,
                          const QString &host, QUrl::ParsingMode mode)

src/network/access/qnetworkaccessmanager.cpp

@@ -739,7 +739,7 @@ bool QNetworkAccessManager::isStrictTransportSecurityEnabled() const
 
     \note While processing HTTP responses, QNetworkAccessManager can also update
     the HSTS cache, removing or updating exitsting policies or introducing new
-    known hosts. The current implementation thus is server-driven, client code
+    \a knownHosts. The current implementation thus is server-driven, client code
     can provide QNetworkAccessManager with previously known or discovered
     policies, but this information can be overridden by "Strict-Transport-Security"
     response headers.