docs(#90): update readme for dropped dependencies

README.md

@@ -63,10 +63,6 @@ following optional keys:
  how long the server should wait in ms before shutting down after
  the last client disconnected; this will be overwritten by the environment
  variable `VIV_TIMEOUT` (default is 10000)
-- **`"openCmd"`**\
- the command `viv` uses to open your browser at a given URL; this
- will be overwritten by the environment variable `VIV_OPEN` (default will try
- `open` and fall back to `xdg-open`)
 - **`"katexOptions"`**\
  [available KaTeX options](https://katex.org/docs/options.html), such as
  ```json
@@ -101,16 +97,14 @@ directory as an argument! See below for installation options.
 
 ### Manual
 
-- make sure you have [`jq`](https:/jqlang/jq) installed
 - download & unpack the [latest
  release](https:/jannis-baum/vivify/releases) for your system
  (macOS or Linux)
 - add the two executables to your `$PATH`
 
 ### Compile yourself
 
-- make sure you have [`jq`](https:/jqlang/jq),
- [`yarn`](https://yarnpkg.com), `make` and `zip` installed
+- make sure you have [`yarn`](https://yarnpkg.com), `make` and `zip` installed
 - clone the repository
 - run `yarn`
 - run `./configure <install_dir>`