Merge branch 'xf/user-manual-markup' into maint

AsciiDoc markup fixes.

* xf/user-manual-markup:
  Documentation: match undefline with the text in old release notes
  Documentation: match underline with the text
  Documentation: fix header markup

diff --cc Documentation/git-bisect.txt
index 0e7482b4c9a7ac839e070db8492cfadce72ce3e8,edd964fe79178a74d029acf8da654688a292f7ee..1b7a97b1dbd9a7c0efec1dd07e294badc4904c08
--- 1/Documentation/git-bisect.txt
--- 2/Documentation/git-bisect.txt
+++ b/Documentation/git-bisect.txt
@@@ -174,10 -167,10 +174,10 @@@ Then compile and test the chosen revisi
  the revision as good or bad in the usual manner.
  
  Bisect skip
- ~~~~~~~~~~~~
+ ~~~~~~~~~~~
  
 -Instead of choosing by yourself a nearby commit, you can ask Git
 -to do it for you by issuing the command:
 +Instead of choosing a nearby commit by yourself, you can ask Git to do
 +it for you by issuing the command:
  
  ------------
  $ git bisect skip                 # Current version cannot be tested

diff --cc Documentation/git-remote.txt
Simple merge

diff --cc Documentation/user-manual.txt
Simple merge