Create testing directory

Created a "testing" directory and moved local-ci-build.md and
run-test-docker.md under it.

Other names considered for this directory "CI/", "test/",
and "continuous-integration/".

Change-Id: I6eb54714100e9856910b341757cfa4c5549e510c
Signed-off-by: Gunnar Mills <gmills@us.ibm.com>
diff --git a/local-ci-build.md b/testing/local-ci-build.md
similarity index 100%
rename from local-ci-build.md
rename to testing/local-ci-build.md
diff --git a/run-test-docker.md b/testing/run-test-docker.md
similarity index 100%
rename from run-test-docker.md
rename to testing/run-test-docker.md