message: update readme using sessionStorage
diff: @@ -73,6 +73,25 @@ Frontend:
  - `front/src/common-app/app-bar/app-bar.component.tsx`
  - `front/src/common-app/app-bar/app-bar.api.tsx`: clear header.
  +## Session Storage
  +
  +We can use session storage for auto-clean this one when users will close browsers:
  +
  +_./front/src/core/api/api.helpers.ts_
  +
  +```diff
  +export const setHeader = (header: string, value: string) => {
  +- localStorage.setItem(header, value);
  ++ sessionStorage.setItem(header, value);
  +};
  +
  +- export const getHeader = (header: string) => localStorage.getItem(header);
  ++ export const getHeader = (header: string) => sessionStorage.getItem(header);
  +
  +```
  +
  +> NOTE: Session storage is not loaded in other tabs.
  +> https://developer.mozilla.org/en-US/docs/Web/API/Window/sessionStorage
  # About Basefactor + Lemoncode
  