doc: update README

README.md

@@ -2,11 +2,15 @@
 
 A web interface to an NMDC/ADC hub.
 
-Chat in real-time on your NMDC/ADC hub using a web browser. This project forks and deprecates my earlier `dcwebui2` project since Go seems to use less memory than node.
+Chat in real-time on your NMDC/ADC hub using a web browser.
+
+## Relationship to other projects
+
+This project forks and deprecates my earlier `dcwebui2` project since Go seems to use less memory than node.
 
 This project supercedes [dcwebui](https://code.ivysaur.me/dcwebui/), [flexdc](https://code.ivysaur.me/flexdc/), and [dcwebui2](https://code.ivysaur.me/dcwebui2/).
 
-## Upgrading from `dcwebui2`
+### Upgrading from `dcwebui2`
 
 - The configuration file content is identical between `nmdc-webfrontend` 1.0.0 and `dcwebui2` 1.3.0, but please now ensure it's valid JSON instead of arbitrary javascript. This means no assignment, use double-quoted strings, and no comments.
 - Future changes to the configuration file since `nmdc-webfrontend` 1.0.0 are backward compatible (see the changelog for more details).
@@ -15,9 +19,9 @@ This project supercedes [dcwebui](https://code.ivysaur.me/dcwebui/), [flexdc](ht
 
 1. Install Go (>= 1.11), Node.js, NPM, and 7-Zip (`p7zip-full` on Debian)
 2. Download the source code
-    - `git clone https://git.ivysaur.me/code.ivysaur.me/nmdc-webfrontend.git `; or
-    - `go get code.ivysaur.me/nmdc-webfrontend` ; or
-    - download and extract a source archive
+	- `git clone https://git.ivysaur.me/code.ivysaur.me/nmdc-webfrontend.git `; or
+	- `go get code.ivysaur.me/nmdc-webfrontend` ; or
+	- download and extract a source archive
 3. Install dependencies: `sudo make deps`
 4. Build: `make`
 5. Optional: Set `web.external_webroot: true` in the config file for unminified development