Update build requirements

Author: FireController1847

README.md

@@ -273,43 +273,56 @@ database:
 
 ## Build Requirements
 
-Since TrueDiscordLink uses NMS, you need to have all versions of NMS available.
-
-The easiest way to do this is to use the following GitHub repository, follow its instructions, then copy the final jar to the project, naming it "all-spigot-nms.jar".
-
-https://github.com/Jacxk/all-spigot-nms
-
-If, for whatever reason, this doesn't work, you can comment that out and include all of the following versions via BuildTools:
-
-```
-(Java 8)
-1.8
-1.8.3
-1.8.8
-1.9.2
-1.9.4
-1.10.2
-1.11.2
-1.12.2
-1.13
-1.13.2
-1.14.4
-1.15.2
-1.16.1
-1.16.3
-1.16.5
-
-(Java 16)
-1.17.1
-
-(Java 17)
-1.18.1
-1.18.2
-```
-
-Run BuildTools with the following command for each version:
-```
-java -jar BuildTools.jar --rev <version> --remapped
-```
-
-Depending on your default Java version, you may need to provide the file location to a "java.exe" file instead of just running "java" for some (or most) of the commands.
+Since TrueDiscordLink uses NMS, you need to have all supported versions of NMS available.
+
+
+1) Install [JDK 17 and JDK 8](https://adoptium.net/temurin/releases/).
+2) Download [BuildTools from Spigot](https://www.spigotmc.org/wiki/buildtools/)
+    1) If you're on Windows, I've written a batch script which will run through and build all of the required versions.
+        ```batch
+        @ECHO OFF
+        SET JAVA8_PATH="C:\Program Files\Eclipse Adoptium\jdk-8.0.372.7-hotspot\bin\java.exe"
+        SET JAVA17_PATH="C:\Program Files\Eclipse Adoptium\jdk-17.0.7.7-hotspot\bin\java.exe"
+        %JAVA17_PATH% -jar BuildTools.jar --rev 1.20.1 --remapped
+        %JAVA17_PATH% -jar BuildTools.jar --rev 1.19 --remapped
+        %JAVA17_PATH% -jar BuildTools.jar --rev 1.18.2 --remapped
+        %JAVA17_PATH% -jar BuildTools.jar --rev 1.18.1 --remapped
+        %JAVA17_PATH% -jar BuildTools.jar --rev 1.17.1 --remapped
+        %JAVA8_PATH% -jar BuildTools.jar --rev 1.16.5 --remapped
+        %JAVA8_PATH% -jar BuildTools.jar --rev 1.16.3 --remapped
+        %JAVA8_PATH% -jar BuildTools.jar --rev 1.16.1 --remapped
+        %JAVA8_PATH% -jar BuildTools.jar --rev 1.15.2 --remapped
+        %JAVA8_PATH% -jar BuildTools.jar --rev 1.14.4 --remapped
+        %JAVA8_PATH% -jar BuildTools.jar --rev 1.13.2 --remapped
+        %JAVA8_PATH% -jar BuildTools.jar --rev 1.13 --remapped
+        %JAVA8_PATH% -jar BuildTools.jar --rev 1.13 --remapped
+        %JAVA8_PATH% -jar BuildTools.jar --rev 1.12.2 --remapped
+        PAUSE
+        ```
+    2) If you're on a different machine, you'll need to manually run the BuildTools utility with the `--remapped` argument for all of the following versions:
+        ```
+        (Java 8)
+        1.8
+        1.8.3
+        1.8.8
+        1.9.2
+        1.9.4
+        1.10.2
+        1.11.2
+        1.12.2
+        1.13
+        1.13.2
+        1.14.4
+        1.15.2
+        1.16.1
+        1.16.3
+        1.16.5
+        
+        (Java 17)
+        1.17.1
+        1.18.1
+        1.18.2
+        1.19
+        1.20.1
+        ```
+3) Finally, set the `SERVER_DIRECTORY` environment variable in your IDE to a path to a test server (not the plugins folder, but the server's container folder).