DOC: Change hash to main for recommended use.

Author: hjmjohnson

README.md

@@ -87,12 +87,12 @@ on: [push,pull_request]
 
 jobs:
   cxx-build-workflow:
-    uses: InsightSoftwareConsortium/ITKRemoteModuleBuildTestPackageAction/.github/workflows/build-test-cxx.yml@d4a5ce4f219b66b78269a15392e15c95f90e7e00
+    uses: InsightSoftwareConsortium/ITKRemoteModuleBuildTestPackageAction/.github/workflows/build-test-cxx.yml@main
     with:
       itk-cmake-options: '-DITK_BUILD_DEFAULT_MODULES:BOOL=OFF -DITKGroup_Core:BOOL=ON'
 
   python-build-workflow:
-    uses: InsightSoftwareConsortium/ITKRemoteModuleBuildTestPackageAction/.github/workflows/build-test-package-python.yml@d4a5ce4f219b66b78269a15392e15c95f90e7e00
+    uses: InsightSoftwareConsortium/ITKRemoteModuleBuildTestPackageAction/.github/workflows/build-test-package-python.yml@main
     secrets:
       pypi_password: ${{ secrets.pypi_password }}
 ```
@@ -117,7 +117,7 @@ The top-level jobs used to organize the run. Reusable workflows may provide mult
 
 ```yaml
   cxx-build-workflow:
-    uses: InsightSoftwareConsortium/ITKRemoteModuleBuildTestPackageAction/.github/workflows/build-test-cxx.yml@d4a5ce4f219b66b78269a15392e15c95f90e7e00
+    uses: InsightSoftwareConsortium/ITKRemoteModuleBuildTestPackageAction/.github/workflows/build-test-cxx.yml@main
 ```
 Tells GHA to fetch and run the `build-test-cxx.yml` workflow.
 A commit hash or tagged version may be provided.
@@ -132,7 +132,7 @@ certain modules are built before the external module itself is subsequently buil
 
 ```yaml
   python-build-workflow:
-    uses: InsightSoftwareConsortium/ITKRemoteModuleBuildTestPackageAction/.github/workflows/build-test-package-python.yml@d4a5ce4f219b66b78269a15392e15c95f90e7e00
+    uses: InsightSoftwareConsortium/ITKRemoteModuleBuildTestPackageAction/.github/workflows/build-test-package-python.yml@main
 ```
 Tells GHA to fetch and run the `build-test-package-python.yml` workflow.
 A commit hash or tagged version may be provided.