Update core ci.yml so that some CI pipeline runs when modifying markdown files at the root of the repo (Azure#4900)

* Update core ci.yml so that some CI pipeline runs when modifying markdown files at the root of the repo

* Update ci.yml for PRs.

* Update README.md to test that CI triggers.

* Check why wildcard isn't working as expected

* Try wrapping wildcard in quotes since it is at the start of the path to trigger

Author: ahsonkhan

README.md

@@ -18,7 +18,7 @@ Here are some alternatives, from easiest to advanced, how you can get, build and
 
 #### CMake Project + Vcpkg - manifest mode
 
-The easiest way to acquire the C++ SDK is leveraging [vcpkg](https://github.com/microsoft/vcpkg#getting-started) package manager. You will need to install [Git](https://git-scm.com/downloads) before getting started.
+The easiest way to acquire the C++ SDK is leveraging the [vcpkg](https://github.com/microsoft/vcpkg#getting-started) package manager. You will need to install [Git](https://git-scm.com/downloads) before getting started.
 
 ##### 1. Create a [CMake](https://cmake.org/cmake/help/latest/) project
 

sdk/core/ci.yml

@@ -17,6 +17,7 @@ trigger:
       - doc/
       - samples/
       - .github/
+      - '*.md'
       - /**/*.md
 
 pr:
@@ -36,6 +37,7 @@ pr:
       - doc/
       - samples/
       - .github/
+      - '*.md'
       - /**/*.md
 
 stages: