Miscellaneous fixes in the documentation

documentation/md/extensions.md

@@ -133,17 +133,17 @@ cytoscape('collection', 'fooBar', function(){
 1. Use [rollup-starter-lib](https://github.com/rollup/rollup-starter-lib) to create the project's scaffolding.  Alternatively, manually generate the project configuration files with your favourite bundler.
 1. Use [Babel](https://babeljs.io) if you want to support older browsers with your extension.  The `rollup-starter-lib` repo has an example in the [`babel` branch](https://github.com/rollup/rollup-starter-lib/tree/babel).
 1. The default export of your extension should be a registration function, e.g.:
-  ```
-  export default function register(cytoscape){
-    cytoscape('collection', 'fooBar', fooBarFunction);
-  }
-  ```
+    ```
+    export default function register(cytoscape){
+      cytoscape('collection', 'fooBar', fooBarFunction);
+    }
+    ```
 1. You may want to support automatic registration for consumers who use traditional `<script>` tags to use your extension, i.e.:
-  ```
-  if(typeof window.cytoscape !== 'undefined'){
-    register(window.cytoscape);
-  }
-  ```
+    ```
+    if(typeof window.cytoscape !== 'undefined'){
+      register(window.cytoscape);
+    }
+    ```
 1. Document your extension's API in a `README.md` file in the root directory of your respository.
 1. [Publish your extension to npm](https://docs.npmjs.com/cli/publish).
 1. [Submit a request](https://github.com/cytoscape/cytoscape.js/issues/new?labels=documentation&title=List%20extension%20:%20%3Cyour%20extension%20name%3E&body=Please%20enter%20your%20Github%20URL%20and%20a%20one-line%20description) to have your extension listed in the documentation.

documentation/md/intro.md

@@ -23,6 +23,7 @@
     * npm
     * yarn
     * bower
+    * jspm
 * Supports the [R language](https://www.r-project.org/) via [RCyjs](http://www.bioconductor.org/packages/release/bioc/html/RCyjs.html)
 * Supports rendering images of graphs on Node.js with [Cytosnap](https://github.com/cytoscape/cytosnap)
 * Has a large suite of tests that can be run in the browser or the terminal
@@ -50,7 +51,7 @@
 
 * [Amazon](http://amazon.com)
 * [Apache Software Foundation](https://apache.org)
-* [Duo](https://duo.com)
+* [Cisco](https://www.cisco.com)
 * [Elastic](https://www.elastic.co/)
 * [Fujitsu](https://www.fujitsu.com)
 * [GitHub](https://github.com)
@@ -285,6 +286,7 @@ The library was created at the [Donnelly Centre](http://thedonnellycentre.utoron
 ## Packages
 
 * npm : `npm install cytoscape`
+* yarn : `yarn install cytoscape`
 * bower : `bower install cytoscape`
 * jspm : `jspm install npm:cytoscape`