renamed most remaining .txt documentation files to .rst

doc/nimfix.txt

@@ -1,56 +0,0 @@
-=====================
-  Nimfix User Guide
-=====================
-
-:Author: Andreas Rumpf
-:Version: |nimversion|
-
-**WARNING**: Nimfix is currently beta-quality.
-
-Nimfix is a tool to help you upgrade from Nimrod (<= version 0.9.6) to
-Nim (=> version 0.10.0).
-
-It performs 3 different actions:
-
-1. It makes your code case consistent.
-2. It renames every symbol that has a deprecation rule. So if a module has a
-   rule ``{.deprecated: [TFoo: Foo].}`` then ``TFoo`` is replaced by ``Foo``.
-3. It can also check that your identifiers adhere to the official style guide
-   and optionally modify them to do so (via ``--styleCheck:auto``).
-
-Note that ``nimfix`` defaults to **overwrite** your code unless you
-use ``--overwriteFiles:off``! But hey, if you do not use a version control
-system by this day and age, your project is already in big trouble.
-
-
-Installation
-------------
-
-Nimfix is part of the compiler distribution. Compile via::
-
-  nim c compiler/nimfix/nimfix.nim
-  mv compiler/nimfix/nimfix bin
-
-Or on windows::
-
-  nim c compiler\nimfix\nimfix.nim
-  move compiler\nimfix\nimfix.exe bin
-
-Usage
------
-
-Usage:
-  nimfix [options] projectfile.nim
-
-Options:
-
-  --overwriteFiles:on|off       overwrite the original nim files. DEFAULT is ON!
-  --wholeProject                overwrite every processed file.
-  --checkExtern:on|off          style check also extern names
-  --styleCheck:on|off|auto      performs style checking for identifiers
-                                and suggests an alternative spelling;
-                                'auto' corrects the spelling.
-
-In addition, all command line options of Nim are supported.
-
-