Documentation: Fix the asciidoctor warnings in dev-e2e-tests

Before this change, there was one warning such as below per numbered
bullet item listed, from that section of the dev-e2e-tests page.

$ bazel build release Documentation:searchfree
=>
INFO: From Rendering asciidoctor files for searchfree_htmlonly:
Sep. 29, 2020 2:13:58 P.M. <script> convertFile
WARNING: dev-e2e-tests.txt.searchfree_htmlonly_expn: line 43: list item index: expected 2, got 1
Sep. 29, 2020 2:13:58 P.M. <script> convertFile
WARNING: dev-e2e-tests.txt.searchfree_htmlonly_expn: line 44: list item index: expected 3, got 1
(...)
Sep. 29, 2020 2:13:58 P.M. <script> convertFile
WARNING: dev-e2e-tests.txt.html_htmlonly_expn: line 53: list item index: expected 9, got 1

Change-Id: I12c739a5a80ca500c27649f2ab4151db7e630ff6
diff --git a/Documentation/dev-e2e-tests.txt b/Documentation/dev-e2e-tests.txt
index 3826da4..20484e6 100644
--- a/Documentation/dev-e2e-tests.txt
+++ b/Documentation/dev-e2e-tests.txt
@@ -40,17 +40,17 @@
 === Eclipse
 
 1. Install the link:http://scala-ide.org/docs/user/gettingstarted.html[Scala plugin for Eclipse].
-1. Run `sbt eclipse` from the `e2e-tests` root directory.
-1. Import the resulting `e2e-tests` eclipse file inside the Gerrit project, in Eclipse.
-1. You should see errors in Eclipse telling you there are missing packages.
-1. This is due to the sbt-eclipse plugin not properly linking the Gerrit Gatling e2e tests with
+2. Run `sbt eclipse` from the `e2e-tests` root directory.
+3. Import the resulting `e2e-tests` eclipse file inside the Gerrit project, in Eclipse.
+4. You should see errors in Eclipse telling you there are missing packages.
+5. This is due to the sbt-eclipse plugin not properly linking the Gerrit Gatling e2e tests with
    Gatling Git plugin.
-1. You then have to right-click on the root directory and choose the build path->link source option.
-1. Then you have to browse to `.sbt/1.0/staging`, find the folder where gatling-git is contained,
+6. You then have to right-click on the root directory and choose the build path->link source option.
+7. Then you have to browse to `.sbt/1.0/staging`, find the folder where gatling-git is contained,
    and choose that.
-1. That last step should link the gatling-git plugin to the project; e2e tests should not show
+8. That last step should link the gatling-git plugin to the project; e2e tests should not show
    errors anymore.
-1. You may get errors in the gatling-git directory; these should not affect Gerrit Gatling
+9. You may get errors in the gatling-git directory; these should not affect Gerrit Gatling
    development and can be ignored.
 
 == How to build the tests