Enable doc8 check for all .rst files

Fixing one too long line is enough.

Change-Id: I517e6141605819ae650aa6021bf8d1c1aca4b923
Signed-off-by: Takashi Kajinami <kajinamit@oss.nttdata.com>

.pre-commit-config.yaml

@@ -21,7 +21,6 @@ repos:
     rev: v2.0.0
     hooks:
       - id: doc8
-        files: doc/source/.*\.rst$
   - repo: https://github.com/asottile/pyupgrade
     rev: v3.20.0
     hooks:

README.rst

@@ -19,9 +19,9 @@ collect your technical debt in a non-destructive manner. The goal of this
 library is to provide well documented developer facing deprecation
 patterns that start of with a basic set and can expand into a larger
 set of patterns as time goes on. The desired output of these patterns
-is to apply the warnings module to emit DeprecationWarning or PendingDeprecationWarning
-or similar derivative to developers using libraries (or potentially
-applications) about future deprecations.
+is to apply the warnings module to emit DeprecationWarning or
+PendingDeprecationWarning or similar derivative to developers using libraries
+(or potentially applications) about future deprecations.
 
 
 * Free software: Apache license