fix: docs: correct paths; add to readme

Author: JPHutchins

README.md

@@ -1,5 +1,18 @@
 # Intercreate CMake
 
+This CMake library adds convenience functions to the build system.
+
+# Include in Your Project
+
+1. Add the fetch file to your repo: 
+  ```
+  wget https://github.com/intercreate/ic-cmake/releases/latest/download/fetch_ic.cmake
+  ```
+2. Include and link in your CMakeLists.txt:
+  ```cmake
+  include(fetch_ic.cmake)
+  ```
+
 # Tests
 
 ```

fetch_ic.cmake

@@ -6,13 +6,13 @@
 include_guard(GLOBAL)
 
 if(${CMAKE_VERSION} VERSION_GREATER_EQUAL "3.24.0")
-    set(download_extract_timestamp "DOWNLOAD_EXTRACT_TIMESTAMP true")
+    set(download_extract_timestamp DOWNLOAD_EXTRACT_TIMESTAMP true)
 endif()
 
 include(FetchContent)
 
 FetchContent_Declare(ic_cmake
-    URL https://github.com/intercreate/test-cmake/releases/latest/download/ic.zip
+    URL https://github.com/intercreate/ic-cmake/releases/latest/download/ic_cmake.zip
     ${download_extract_timestamp}
 )
 FetchContent_MakeAvailable(ic_cmake)