Minor updates to the doc strings

Author: elpaso

src/core/qgsfeatureiterator.h

@@ -276,13 +276,13 @@ class CORE_EXPORT QgsFeatureIterator
     % End
 #endif
 
-    //! construct invalid iterator
+    //! Construct invalid iterator
     QgsFeatureIterator() = default;
-    //! construct a valid iterator
+    //! Construct a valid iterator
     QgsFeatureIterator( QgsAbstractFeatureIterator *iter SIP_TRANSFER );
-    //! copy constructor copies the iterator, increases ref.count
+    //! Copy constructor copies the iterator, increases ref.count
     QgsFeatureIterator( const QgsFeatureIterator &fi );
-    //! destructor deletes the iterator if it has no more references
+    //! Destructor deletes the iterator if it has no more references
     ~QgsFeatureIterator();
 
     QgsFeatureIterator &operator=( const QgsFeatureIterator &other );

src/core/qgsprovidermetadata.h

@@ -58,7 +58,6 @@ class CORE_EXPORT QgsProviderMetadata
     /**
      * Metadata for provider with direct provider creation function pointer, where
      * no library is involved.
-     * \note not available in Python bindings
      * \since QGIS 3.0
      */
 #ifndef SIP_RUN

src/core/qgsproviderregistry.h

@@ -181,7 +181,6 @@ class CORE_EXPORT QgsProviderRegistry
 
     /**
      * \brief register a new vector data provider from its \a providerMetadata
-     * \param providerMetadata QgsProviderMetadata instance describing the new provider
      * \note ownership of the QgsProviderMetadata instance is transferred to the registry
      * \since QGIS 3.2
      */