Update spdx/ folder to spdx2.2/

Signed-off-by: Arthit Suriyawongkul <[email protected]>

software/README.md

@@ -10,7 +10,8 @@ Directories of the form `example#` are structured as follows:
 
 - `content/src/`: contains the example's source code
 - `content/build/`: contains the example's built artifacts
-- `spdx/`: contains one or more SPDX documents (in tag-value or JSON format) for the sources and the build artifacts
+- `spdx2.2/`: contains one or more SPDX 2.2 documents (in tag-value or JSON
+  format) for the sources and the build artifacts
 - `README.md`: more details about the particular example
 
 Each directory contains build metadata which is used to create the build artifacts. It assumes that the necessary tools (make, gcc, etc.) are present on your system, and doesn't do any autoconfiguration or the like.
@@ -30,4 +31,3 @@ Each directory contains build metadata which is used to create the build artifac
 |  9 | 2 Java files | generated from Gradle | 1 document |a copy of the [App-BOM-ination SPDX example](https://github.com/yevster/App-BOM-ination) contributed by @yevster for the SPDX spec version 2.0 docfest |
 | 10 | 1 Python file | python package | 1 document | packaged using the [instructions from python.org](https://packaging.python.org/en/latest/tutorials/packaging-projects/) |
 | 11 | 1 Rust file | compiled with Cargo | 1 document | SBOM describing both source and artifact, related with GENERATED_FROM |
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