README: Backport changes to README from master (27320c83)

The OpenSRF prereq had already been bumped to 2.1 in the rel_2_2 branch,
which was unexpected as the same change had not occurred in master.
However, we can apply the other diffs from 27320c83 here:

Use a title that fits into the DIG documentation more smoothly, and
be consistent about sentence-style capitalization of sub-headings.

Signed-off-by: Dan Scott <dan@coffeecode.net>

diff --git a/README b/README
index 0f52df4..b1c7bba 100644 (file)
--- a/README
+++ b/README
@@ -1,5 +1,5 @@
-README for Evergreen 2.2
-========================
+Installing the Evergreen server
+===============================
 :toc:
 :numbered:
 
@@ -32,7 +32,7 @@ follows:
        Evergreen that you will use to test connectivity and configure your
        Evergreen instance.
 
-Preamble: Developer instructions
+Preamble: developer instructions
 --------------------------------
 
 [NOTE]