Update installation.md to correct for updated template options (#1668)

Author: declan-ruediger

docs/getting_started/installation.md

@@ -147,7 +147,7 @@ Bun requires runtime components of Visual C++ libraries to run on windows. This
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-The command will return four template options to choose from as shown below.
+The command will return several template options to choose from as shown below.
 
 ```bash
 Initializing the web directory.