README: fold install into getting started

Author: rlindner81

README.md

@@ -7,16 +7,15 @@
 
 SAP BTP feature toggle library enables Node.js applications using the SAP Cloud Application Programming Model to maintain live-updatable feature toggles via Redis.
 
-## Install or Upgrade
-
-```bash
-npm install --save @cap-js-community/feature-toggle-library
-```
-
 ## Getting Started
 
 - Set up project with `@sap/cds`
-- Install library `npm install --save @cap-js-community/feature-toggle-library`
+- Install library
+
+  ```bash
+  npm install --save @cap-js-community/feature-toggle-library
+  ```
+
 - Write `toggles.yaml` configuration file:
 
   ```yaml

docs/index.md

@@ -8,16 +8,15 @@ nav_order: 1
 
 SAP BTP feature toggle library enables Node.js applications using the SAP Cloud Application Programming Model to maintain live-updatable feature toggles via Redis.
 
-## Install or Upgrade
-
-```bash
-npm install --save @cap-js-community/feature-toggle-library
-```
-
 ## Getting Started
 
 - Set up project with `@sap/cds`
-- Install library `npm install --save @cap-js-community/feature-toggle-library`
+- Install library
+
+  ```bash
+  npm install --save @cap-js-community/feature-toggle-library
+  ```
+
 - Write `toggles.yaml` configuration file:
 
   ```yaml

test/docs.test.js

@@ -5,7 +5,7 @@ const { join } = require("path");
 
 describe("docs", () => {
   it("documentation README / overview consistency check", async () => {
-    const headings = ["Install or Upgrade", "Getting Started", "Features", "Peers"];
+    const headings = ["Getting Started", "Features", "Peers"];
     const readmeData = readFileSync(join(__dirname, "..", "README.md")).toString();
     const overviewData = readFileSync(join(__dirname, "..", "docs", "index.md")).toString();
     for (const heading of headings) {