changeset 5780:e117cf7401db

doc: switch rst `=` section underlines to `-`

When using GENDOC_LOAD_CONFIGURED_EXTENSIONS=1, Mercurial's doc/gendoc.py can
load extensions from outside of just the hgext directory, and pull in this doc.

When added to the documentation, this should be nested inside of the following
extension hierarchy:

- Extensions
  - evolve

The generated documentation has an established hierarchy of section headers, and
the above uses `"` for top level, and `=` for each extension. Since gendoc just
pastes it in verbatim, with `=` underlines, we get "Obsolescence Markers
Discovery", "Effect Flag Experiment", and "Template keywords" as siblings to the
evolve extension, instead of nested inside of it.

This is not required for the string below it (that shows up with
`hg help evolution`), as that is one level higher in the hierarchy (not nested
inside of an "Extensions" section), so `=` is appropriate there.

--- a/hgext3rd/evolve/__init__.py	Wed Feb 17 12:00:45 2021 -0800
+++ b/hgext3rd/evolve/__init__.py	Wed Feb 17 14:00:43 2021 -0800
@@ -52,7 +52,7 @@
     evolution.obsdiscovery = yes
 
 Obsolescence Markers Discovery
-==============================
+------------------------------
 
 The evolve extension containts an experimental new protocol to discover common
 markers between local and remote repositories.
@@ -111,7 +111,7 @@
     evolution.obsdiscovery = no
 
 Effect Flag Experiment
-======================
+----------------------
 
 Evolve also records what changed between two evolutions of a changeset. For
 example, having this information is helpful to understand what changed between
@@ -154,7 +154,7 @@
 the effect flag recording.
 
 Template keywords
-=================
+-----------------
 
 Evolve provides one template keyword that helps explore obsolescence history: