Fix typos

Change-Id: If515966300c5d3835e4d4a9004fb8cd472f4d3ae
Reviewed-on: https://gerrit.libreoffice.org/59308Reviewed-by: Julien Nabet <serval2412@yahoo.fr>
Tested-by: Jenkins

extras/README

@@ -57,4 +57,4 @@ How-to add a new template category
 		+ add all files contained in foo0.ott (except mimetype) in extras_FOO_XMLFILES
 		+ if foo0.ott contains files with other extension than .xml, .rdf, .svm, .svg, .png and .jpg
 			+ add a CPY call at the end of the file
-		+ optionaly, replace extension ott (4 places)
+		+ optionally, replace extension ott (4 places)

sw/source/core/inc/viewimp.hxx

@@ -244,7 +244,7 @@ public:
 
     inline void AddAccessibleObj( const SdrObject *pObj );
 
-    /// Invalidate accessible frame's frame's content
+    /// Invalidate accessible frame's content
     void InvalidateAccessibleFrameContent( const SwFrame *pFrame );
 
     /// Invalidate accessible frame's cursor position