godoc for converter package + fixing typo in godoc of process package

app/handlers/converter/converter.go

@@ -1,3 +1,4 @@
+// Package converter implements a solution for converting one or more files to PDF.
 package converter
 
 import (
@@ -12,17 +13,21 @@ import (
 	"github.com/satori/go.uuid"
 )
 
+// Converter handles conversion into PDF of files coming from a request.
 type Converter struct {
 	files      []*gfile.File
 	workingDir string
 }
 
+// NoFileToConvertError is raised when the converter has no file
+// to convert.
 type NoFileToConvertError struct{}
 
 func (e *NoFileToConvertError) Error() string {
 	return "There is no file to convert"
 }
 
+// NewConverter instantiates a converter by parsing a request.
 func NewConverter(r *http.Request, contentType ghttp.ContentType) (*Converter, error) {
 	c := &Converter{
 		workingDir: fmt.Sprintf("./%s/", uuid.NewV4().String()),
@@ -77,6 +82,9 @@ func NewConverter(r *http.Request, contentType ghttp.ContentType) (*Converter, e
 	return c, nil
 }
 
+// Convert converts its associated files to PDF. If more than one file,
+// it will merge all of them into one unique PDF file.
+// Returns the new file path or an error if something bad happened.
 func (c *Converter) Convert() (string, error) {
 	var filesPaths []string
 	for _, f := range c.files {
@@ -104,6 +112,7 @@ func (c *Converter) Convert() (string, error) {
 	return path, nil
 }
 
+// Clear removes all file inside its working directory.
 func (c *Converter) Clear() error {
 	if err := os.RemoveAll(c.workingDir); err != nil {
 		return err

app/handlers/converter/process/process.go

@@ -69,7 +69,7 @@ func Unconv(workingDir string, file *gfile.File) (string, error) {
 	return cmdData.ResultFilePath, nil
 }
 
-// mergeDAta will be applied to the data-driven template of the merge command.
+// mergeData will be applied to the data-driven template of the merge command.
 type mergeData struct {
 	FilesPaths     []string
 	ResultFilePath string