DOC: changelog with optimistic release date

CHANGELOG.md

+# FSL base project changelog
+
+
+## 2011.1 (Tuesday 1st December 2020)
+
+ - Added `creeateFSLWrapper` and `removeFSLWrapper`, utility commands, which
+   will be used to create isolated wrapper scripts of all FSL executables in a
+   separate sub-directory, so they can be added to the user `$PATH` without
+   other executables in `$PREFIX/bin/` causing conflicts (!1).
+
+
+## 2011.0 (Monday 2nd November 2020)
+
+ - Initial release of the FSL `base` project - an amalagamation of `fsl/etc`
+   and `fsl/config`, which has been adjusted to compile shared libraries with
+   dynamic linking, and tweaked for use as the base of a `conda`-managed FSL
+   installation.