T28_2 Further updates documentation

[danielgranadoscampos]

• Updated the dictionary, credentials, and ixplorer vignettes with their corresponding translations. This closes the following
  Closes Update documentation in vignettes #28
  Closes Note for the current_tickets function documentation #43
  Closes Document usage of both addin and function to create tickets #52
• Changed names to make then more accesible, eg: diccionary_es.Rmd is now diccionario.Rmd
• Added new vignette showing the general workflow for users that want a quick look and not an in-depht tutorial like we show in ixplorer.Rmd vignette
• In the ixplorer.Rmd vignette as well as in the dictionary.Rmd I added a table of contents (toc) to make it easier for the users to look for a specific step in the tutorial or a specific term in the dictionary
• Fixed some typos