Bug description

The 4 links in the README.md to the Manifesto are broken, because the name of the Manifesto file is INDITEX_FOSS_Manifesto.md but the link leads to ITX_FOSS_Manifesto.md. This causes a 404 error when clicking on the link.

In addition, the link to CODE_OF_CONDUCT.md in the CONTRIBUTING.md is also broken, as the file name is CODE_of_CONDUCT.md ("of" in lower case) and the link leads to CODE_OF_CONDUCT.md ("OF" in upper case).

Proposed solution

Both problems can be solved either by changing the link (from https://github.com/InditexTech/foss/blob/main/ITX_FOSS_Manifesto.md to https://github.com/InditexTech/foss/blob/main/INDITEX_FOSS_Manifesto.md in the first case) or by changing the file name (from INDITEX_FOSS_Manifesto.md to ITX_FOSS_Manifesto.md).

The second option may be more risky, as there may be links that are properly referencing the file, and these may be broken when the file is renamed. For example, CODE_of_CONDUCT.md is well referenced from README.md. So, if the second option is chosen, care should be taken to change, in addition to the filename, all working links to the file.