README.md: add build instructions for Fish users

README.md

@@ -157,6 +157,7 @@ Add to the project’s "pom.xml" file:
    or "/usr/lib/jvm/java-8-openjdk-amd64/" or
    "/Library/Java/JavaVirtualMachines/liberica-jdk-17-full.jdk/Contents/Home" .)
   + using Bash or Zsh: `export JAVA_HOME="` *path to installation* `"`
+  + using [Fish]: `set -g JAVA_HOME "` *path to installation* `"`
   + using Windows Command Prompt: `set JAVA_HOME="` *path to installation* `"`
   + using PowerShell: `$env:JAVA_HOME = '` *path to installation* `'`
 3. Download and extract the j-ogg-all source code from [GitHub]:
@@ -171,19 +172,19 @@ Add to the project’s "pom.xml" file:
     + extract the contents of the saved ZIP file
     + `cd` to the extracted directory/folder
 4. Run the [Gradle] wrapper:
-  + using Bash or PowerShell or Zsh: `./gradlew build`
+  + using Bash or Fish or PowerShell or Zsh: `./gradlew build`
   + using Windows Command Prompt: `.\gradlew build`
 
 After a successful build,
 Maven artifacts will be found
 in "library/build/libs" and "vorbis/build/libs".
 
 You can install the artifacts to your local Maven repository:
-+ using Bash or PowerShell or Zsh: `./gradlew install`
++ using Bash or Fish or PowerShell or Zsh: `./gradlew install`
 + using Windows Command Prompt: `.\gradlew install`
 
 You can restore the project to a pristine state:
-+ using Bash or PowerShell or Zsh: `./gradlew clean`
++ using Bash or Fish or PowerShell or Zsh: `./gradlew clean`
 + using Windows Command Prompt: `.\gradlew clean`
 
 [Jump to table of contents](#toc)
@@ -244,6 +245,7 @@ In February 2023, the "library" and "vorbis" subprojects split off.
 
 [adoptium]: https://adoptium.net/releases.html "Adoptium Project"
 [daala]: https://xiph.org/daala/ "Daala codec"
+[fish]: https://fishshell.com/ "Fish command-line shell"
 [flac]: https://xiph.org/flac/ "Free Lossless Audio Codec"
 [git]: https://git-scm.com "Git"
 [github]: https://github.com "GitHub"