chore: address grammar and typo errors

Signed-off-by: Trong Nhan Mai <trong.nhan.mai@oracle.com>

Author: Trong Nhan Mai

tests/integration/README.md

@@ -171,11 +171,11 @@ $ python ./tests/integration/run.py run --exclude-tag npm-registry-testcase ./al
 You can simply think of each `--include-tag`/`--exclude-tag` argument as adding an additional constraint that a selected test case must satisfy.
 
 Instructions on how to tag a test case for our CI/CD pipeline:
-- If you want a test case to **only** run for the container image, using **only** `macaron-docker-image`.
-- If you want a test case to **only** run with the Macaron Python package **only** `macaron-python-package`.
+- If you want a test case to **only** run for the container image, use **only** `macaron-docker-image`.
+- If you want a test case to **only** run with the Macaron Python package, use **only** `macaron-python-package`.
 - To skip a test case, use `skip`. `skip` still has the same effect if it's used with other tags.
 - If you want to run a test case for both the Macaron Python package and the docker container, use `macaron-python-package` and `macaron-docker-image` tags.
-- If you want to run test cases that must contain a given set of tags (e.g. `['tag-a', 'tag-b']`), please create an additional tag for those test cases (e.g `tag-a-b`) and use it within `--include-tag`.
+- If you want to run test cases that must contain all of a given set of tags (e.g. `['tag-a', 'tag-b']`), please create an additional tag for those test cases (e.g `tag-a-b`) and use it within `--include-tag`.
 - Test cases marked with `npm-registry-testcase` are not run if the environment variable `NO_NPM` is set to `TRUE`. This only applies when you run the integration tests with:
 ```bash
 $ make integration-test

tests/integration/run.py

@@ -744,7 +744,7 @@ def load_test_cases(
         else:
             # Each --include-tag/--exclude-tag argument adds an additional constraint
             # that a selected test case needs to satisfy, i.e. a selected test case must:
-            # - contains at least on tag specified with --include-tag
+            # - contains at least one tag specified with --include-tag
             # - contains no tag specified with --exclude-tag
             select_case = True
             for include_tag in include_tags: