Zenburn custom prompt

Author: agkozak

README.md

@@ -94,7 +94,7 @@ This prompt has been tested on numerous Linux and BSD distributions, as well as
     - There are more `psvar` elements available to custom prompts. See [the new documentation of `psvar` prompt strings](#psvar-index).
     - By popular demand, it is now possible to use `AGKOZAK_LEFT_PROMPT_ONLY=1` with `AGKOZAK_MULTILINE=0`, although the two options together may be visually unappealing on a slow system or when working with very large Git repos.
     - Asynchronous method improvements: `subst-async` has been tweaked to provide more stability and speed on all systems. `usr1` has been made faster through the elimination of a subshell. It is now the default asynchronous method in all Windows environments.
-    - I have provided the code for [my own "Zenburn" custom prompt](#my-zenburn-custom-prompt).
+    - I have provided the code for [my own Zenburn custom prompt](#my-zenburn-custom-prompt).
 - v3.5.0 (November 15, 2019)
     - The prompt now supports the [zdharma Zsh plugin unload function standard](https://github.com/zdharma/Zsh-100-Commits-Club/blob/master/Zsh-Plugin-Standard.adoc#unload-fun) which is currently implemented by the zplugin framework. When the function `agkozak-zsh-prompt_plugin_unload` is invoked, the state of the shell before agkozak-zsh-prompt was loaded is restored.
     - For debugging purposes, `WARN_CREATE_GLOBAL` is now applied to individual functions whether or not debugging mode is enabled. On Zsh v5.4.0+ and when `AGKOZAK_PROMPT_DEBUG` is set to `1`, all functions have `WARN_NESTED_VAR` applied to them.
@@ -633,7 +633,7 @@ AGKOZAK_USER_HOST_DISPLAY=0
 
 ![My Zenburn Custom Prompt](img/custom_agkozak_zenburn.png)
 
-One of the reasons that my Zenburn prompt is so long is that it tests first to make sure that the terminal has 256 colors; if not, the default colors of the prompt are used.
+My Zenburn prompt tests first to make sure that the terminal has 256 colors; if not, the default colors of the prompt are used.
 
 ```sh
 # Make sure the zsh/terminfo module is loaded