Documentation: Leave --from version as <version> in tutorial files

Author: kateinoigakukun

Sources/JavaScriptKit/Documentation.docc/Tutorials/Hello-World/Resources/hello-world-1-2-add-dependency.txt

@@ -5,5 +5,5 @@ Creating .gitignore
 Creating Sources/
 Creating Sources/main.swift
 
-$ swift package add-dependency https://github.com/swiftwasm/JavaScriptKit.git --from 0.36.0
+$ swift package add-dependency https://github.com/swiftwasm/JavaScriptKit.git --from <version>
 Updating package manifest at Package.swift... done.

Sources/JavaScriptKit/Documentation.docc/Tutorials/Hello-World/Resources/hello-world-1-3-add-target-dependency.txt

@@ -5,7 +5,7 @@ Creating .gitignore
 Creating Sources/
 Creating Sources/main.swift
 
-$ swift package add-dependency https://github.com/swiftwasm/JavaScriptKit.git --from 0.36.0
+$ swift package add-dependency https://github.com/swiftwasm/JavaScriptKit.git --from <version>
 Updating package manifest at Package.swift... done.
 
 $ swift package add-target-dependency --package JavaScriptKit JavaScriptKit Hello