[TYPO] Capital Letters in Software Development Life Cycle and bold font in MUST

[gmolto]

Describe and locate the typo
In 4.9 QC.Sec, "software development life cycle (SDLC)" could be rewritten as "Software Development Life Cycle (SDLC)", with the proper capital letters. This is how it is commonly expressed. Also, this would match the style used in QC.Acc02: Version Control System (VCS).

Also, the "MUST" in QC.Sec01 and QC.Sec02 have extra "*" (you already noticed this, just noting it down here).

Expected content
Add the expected or fixed content.

Additional context
If needed, add here the sources/references that support the change.
Some examples: https://www.google.com?query="software development life cycle (SDLC)"