DOC: Move all docs into en/ subdirectory (#1505)

* DOC: Move all docs into en/ subdirectory

PR #1502 is working on adding a Chinese translation to the docs. In
general, I encouraged this (in #1452) as a path towards getting useful
translated content in the game without requiring a massive
refactor/rearchitecting of everything.

To support this, this takes the first step of moving our docs into an
en/ subdirectory, so that other languages can live alongside. No effort
is made at this time to support or select between alternate languages;
this is a pure-rename refactor.

src/Documentation/doc/en/basic/reputation.md

@@ -0,0 +1,14 @@
+# Reputation
+
+In order to acquire [Augmentations](augmentations.md) from [Factions](factions.md), you need to earn their trust.
+
+This can be done in a variety of ways, but the most common is offering your services to a [Faction](factions.md).
+Another option is to give them intel from [Infiltrations](infiltration.md).
+
+When installing [Augmentations](augmentations.md), all your reputation gets converted to favor.
+Favor increases the rate at which reputation is gained with that faction.
+
+With enough favor, donations are unlocked.
+Donations allow you to spend money to acquire reputation directly.
+Without working for the faction.
+This feature is particularly useful when a very large amount of reputation is needed for an augmentation.