DOC: Fixing applications tags

Applications/Utils/otbConvert.cxx

@@ -89,6 +89,7 @@ private:
     SetDocSeeAlso("Rescale application");
     AddDocTag("Conversion");
     AddDocTag("Image Dynamic");
+    AddDocTag(Tags::Manip);
 
     AddParameter(ParameterType_InputImage,  "in",   "Input image");
     SetParameterDescription("in", "Input image");

Applications/Utils/otbReadImageInfo.cxx

@@ -58,6 +58,7 @@ private:
     SetDocSeeAlso(" ");
 
     AddDocTag("Utilities");
+    AddDocTag(Tags::Manip);
     AddDocTag(Tags::Meta);
 
     AddParameter(ParameterType_InputImage,  "in",   "Input Image");