Update README.md

README.md

@@ -36,6 +36,10 @@ ${GEN_DIR}/openapi/csharp.sh generated csharp.settings
 * [OpenSSL](https://www.openssl.org/)
 * For Linux/Mac:
     * LibCurl built with OpenSSL (Mac: `brew install curl --with-nghttp2`)
+* For Windows:
+    * The easiest option is to use [choco](https://chocolatey.org)  `choco install openssl.light`
+
+Make sure that the `openssl` executable is in your path, by running `openssl` before trying to use the library.
 
 ## Running the Examples
 
@@ -55,4 +59,4 @@ To run the tests
 cd csharp\tests
 dotnet restore
 dotnet xunit
-```
+```