Add doc comments for check functions

Author: per1234

check/checkfunctions/library.go

@@ -8,13 +8,15 @@ import (
 	"github.com/arduino/arduino-check/project/library/libraryproperties"
 )
 
+// LibraryPropertiesFormat checks for invalid library.properties format.
 func LibraryPropertiesFormat() (result checkresult.Type, output string) {
 	if checkdata.LibraryPropertiesLoadError() != nil {
 		return checkresult.Fail, checkdata.LibraryPropertiesLoadError().Error()
 	}
 	return checkresult.Pass, ""
 }
 
+// LibraryPropertiesNameFieldMissing checks for missing library.properties "name" field.
 func LibraryPropertiesNameFieldMissing() (result checkresult.Type, output string) {
 	if checkdata.LibraryPropertiesLoadError() != nil {
 		return checkresult.NotRun, ""
@@ -26,6 +28,7 @@ func LibraryPropertiesNameFieldMissing() (result checkresult.Type, output string
 	return checkresult.Pass, ""
 }
 
+// LibraryPropertiesNameFieldDisallowedCharacters checks for disallowed characters in the library.properties "name" field.
 func LibraryPropertiesNameFieldDisallowedCharacters() (result checkresult.Type, output string) {
 	if checkdata.LibraryPropertiesLoadError() != nil {
 		return checkresult.NotRun, ""
@@ -38,6 +41,7 @@ func LibraryPropertiesNameFieldDisallowedCharacters() (result checkresult.Type,
 	return checkresult.Pass, ""
 }
 
+// LibraryPropertiesVersionFieldMissing checks for missing library.properties "version" field.
 func LibraryPropertiesVersionFieldMissing() (result checkresult.Type, output string) {
 	if checkdata.LibraryPropertiesLoadError() != nil {
 		return checkresult.NotRun, ""

check/checkfunctions/sketch.go

@@ -9,6 +9,7 @@ import (
 	"github.com/arduino/arduino-check/check/checkresult"
 )
 
+// PdeSketchExtension checks for use of deprecated .pde sketch file extensions.
 func PdeSketchExtension() (result checkresult.Type, output string) {
 	directoryListing, _ := checkdata.ProjectPath().ReadDir()
 	directoryListing.FilterOutDirs()