This commit removes unnecessary main-branch merges starting from
8750608b5bca45525c99d0a41a20ed02de93d8c7 and adds the following
needed commit(s) that were made afterward:
- 5dce82c48bc0b174838501c5a111b2de70822914
Several fixes were applied: Syntax corrected, links updated, improved some paragraphs, restored parts that were removed in the conversion to adoc format (see: a8b438587b129d455f4c2c93f556fd6c080a19aa)