docs(CHANGES): fix several typos in the 0.6.0rc2 release message [skip ci]

Author: oesteban

CHANGES.rst

@@ -1,24 +1,15 @@
 0.6.0 (TBD)
 ===========
-Minor relase in preparation of a new CalVer versioning
-following the lead of *fMRIPrep*.
-This release contains a fair amount of maintenance work to
-ensure synchronizity with the TemplateFlow archive
-(https://github.com/templateflow/templateflow).
-These maintenance actions drive the development towards
-establishing a peer-reviewed, lightweight template submission
-protocol.
-With thanks to V. Fonov for contributing the new
-``tpl-MNI152NLin2009cSym``.
+Minor release in preparation of a new CalVer versioning following the lead of *fMRIPrep*.
+This release contains a fair amount of maintenance work to ensure synchronicity with the TemplateFlow archive (https://github.com/templateflow/templateflow). These maintenance actions drive the development towards establishing a peer-reviewed, lightweight template submission protocol.
+With thanks to V. Fonov for contributing with the new ``tpl-MNI152NLin2009cSym``.
 
   * ENH: Update the internal index of *TemplateFlow* (#40)
   * ENH: Automatic generation of template citations (#35)
-  * MAINT: Set-up a GitHub action to test installation
-    alternatives (see #23).
+  * MAINT: Set-up a GitHub action to test installation alternatives (see #23).
   * MAINT: Migrate to ``setuptools_scm`` (#42)
   * MAINT: Run black on the whole tree (#41)
-  * MAINT: Transfer the burden of keeping skeleton updated
-    over to the archive (#39)
+  * MAINT: Transfer the burden of keeping skeleton updated over to the archive (#39)
 
 0.5.2 (March 20, 2020)
 ======================