Reorder requirements docs into the basics section and move devloping civicrm...

Reorder requirements docs into the basics section and move devloping civicrm into core and add backdrop in

docs/requirements.md → docs/basics/requirements.md

@@ -43,46 +43,4 @@ but that takes a lot of work.
 [civicrm-buildkit](https://github.com/civicrm/civicrm-buildkit) provides
 a script which downloads the full collection.
 
-### Installing buildkit on Ubuntu
-
-If you have a new installation of Ubuntu 12.04 or 14.04, then you can download
-everything -- buildkit and the system requirements (`git`, `php`, `apache`,
-`mysql`, etc) -- with one command.  This command will install buildkit to
-`~/buildkit`:
-
-```bash
-curl -Ls https://civicrm.org/get-buildkit.sh | bash -s -- --full --dir ~/buildkit
-```
-
-Note:
-
--   When executing the above command, you must ***NOT*** run as `root`.
-    (Doing so will produce incorrect permissions.) Instead, you must have
-    `sudo` permissions.
--   The `--full` option is opinionated; it specifically installs `php`,
-    `apache`, and `mysql` (rather than `hvm`, `nginx`, `lighttpd`, or
-    `percona`). If you try to mix `--full` with alternative systems, then
-    expect conflicts.
-
-
-### Installing buildkit on other systems
-
-If you already installed the requirements (`git`, `php`, etc), then you can
-download buildkit to `~/buildkit` with these commands:
-
-```bash
-git clone https://github.com/civicrm/civicrm-buildkit.git buildkit
-cd buildkit/bin
-./civi-download-tools
-export PATH="$PWD:$PATH"
-```
-
-### Upgrading buildkit
-
-If you have previously downloaded buildkit and want to update it, run:
-
-```bash
-cd buildkit
-git pull
-./bin/civi-download-tools
-```
+The developer docs have mode information on installing and upgrading [buildkit](https://docs.civicrm.org/dev/en/stable/tools/buildkit/).

docs/core/architecture.md

@@ -5,7 +5,7 @@ This chapter provides a general overview of the codebase organisation.
 !!! tip
     In order to explore the directories inside the CiviCRM repository it is
     generally quickest to to make a local clone of the CiviCRM from GitHub,
-    or better yet install the [buildkit](/requirements.md#buildkit).
+    or better yet install the [buildkit](/basics/requirements.md#buildkit).
 
 !!! tip
     The CiviCRM codebase is object oriented. If you aren't familiar with object

docs/develop.md → docs/core/develop.md

@@ -17,6 +17,8 @@ shell scripts, Drush & Drush make, or composer). The repositories are:
     Joomla integration modules.
 -   [civicrm-wordpress](https://github.com/civicrm/civicrm-wordpress/) -
     WordPress integration modules.
+-   [civicrm-backdrop](https://github.com/civicrm/civicrm-backdrop/) -
+    Backdrop integration module.
 -   [civicrm-packages](https://github.com/civicrm/civicrm-packages/) -
     External dependencies required by CiviCRM.
 -   [civicrm-l10n](https://github.com/civicrm/civicrm-l10n/) -

mkdocs.yml

@@ -8,6 +8,7 @@ pages:
 - Home: index.md
 - Basics:
   - Developer Community: basics/community.md
+  - Requirements: basics/requirements.md
   - Useful Skills: basics/skills.md
   - Planning Your Project: basics/planning.md
   - File System: basics/filesystem.md
@@ -22,6 +23,7 @@ pages:
   - Debugging: tools/debugging.md
 - Core Development:
   - When to Edit Core: core/hacking.md
+  - Developing CiviCRM: core/develop.md
   - How to Contribute: core/contributing.md
   - Reviewing PR's: core/pr-review.md
   - Codebase & Architecture: core/architecture.md
@@ -215,9 +217,6 @@ pages:
   - Documenting Extensions: documentation/extensions.md
   - Markdown: documentation/markdown.md
   - Style Guide: documentation/style-guide.md
-- Content to reorganize:
-  - Requirements: requirements.md
-  - Develop: develop.md
 
 
 markdown_extensions: