In a nutshell

• Robustification and bug fixes (remove erroneous tags and coquilFace errors)
• Improved documentation

What's Changed in detail

• Add test of mmg installation to ci. by @Algiane in https://github.com/MmgTools/mmg/pull/195
• Feature/assert bdy by @coprigent in https://github.com/MmgTools/mmg/pull/203
• Feature/ls vtk input by @laetitia-m in https://github.com/MmgTools/mmg/pull/202
• Feature/vtk fixes by @Algiane in https://github.com/MmgTools/mmg/pull/196
• Non manifold surface does not lead to an error anymore : warning instead by @coprigent in https://github.com/MmgTools/mmg/pull/205
• Feature/input param file by @laetitia-m in https://github.com/MmgTools/mmg/pull/206
• Feature/xreg2 by @coprigent in https://github.com/MmgTools/mmg/pull/207
• Feature/output pvtu parmmg by @laetitia-m in https://github.com/MmgTools/mmg/pull/210
• Feature/ls checkmaniball parmmg by @laetitia-m in https://github.com/MmgTools/mmg/pull/208
• Feature/parser refactoring by @Algiane in https://github.com/MmgTools/mmg/pull/211
• Feature/fix missing bdy ppt tag for parmmg+ls by @Algiane in https://github.com/MmgTools/mmg/pull/212