khronosschoty/palemoon-dev: Pale Moon dev's appear to no longer provide git access to the source code -- so I'll provide my own.

khronosschoty 17d73c84dc added Pale Moon 29.4.4		2 lat temu
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environment_variables.md	17d73c84dc added Pale Moon 29.4.4	2 lat temu
filtering.md	17d73c84dc added Pale Moon 29.4.4	2 lat temu
formats.md	17d73c84dc added Pale Moon 29.4.4	2 lat temu
getting_started.md	17d73c84dc added Pale Moon 29.4.4	2 lat temu
rotation.md	17d73c84dc added Pale Moon 29.4.4	2 lat temu