Updated description of the lookup-only input for main action (#1130)

* Updated description of the lookup-only input for main action

* Update README.md

Co-authored-by: Bishal Prasad <bishal-pdmsft@github.com>

* Update README.md

---------

Co-authored-by: Bishal Prasad <bishal-pdmsft@github.com>

README.md

@@ -54,7 +54,7 @@ If you are using a `self-hosted` Windows runner, `GNU tar` and `zstd` are requir
 * `restore-keys` - An ordered list of prefix-matched keys to use for restoring stale cache if no cache hit occurred for key.
 * `enableCrossOsArchive` - An optional boolean when enabled, allows Windows runners to save or restore caches that can be restored or saved respectively on other platforms. Default: `false`
 * `fail-on-cache-miss` - Fail the workflow if cache entry is not found. Default: `false`
-* `lookup-only` - Skip downloading cache. Only check if cache entry exists. Default: `false`
+* `lookup-only` - If true, only checks if cache entry exists and skips download. Does not change save cache behavior. Default: `false`
 
 #### Environment Variables
 

restore/README.md

@@ -10,7 +10,7 @@ The restore action restores a cache. It works similarly to the `cache` action ex
 * `path` - A list of files, directories, and wildcard patterns to restore. See [`@actions/glob`](https://github.com/actions/toolkit/tree/main/packages/glob) for supported patterns.
 * `restore-keys` - An ordered list of prefix-matched keys to use for restoring stale cache if no cache hit occurred for key.
 * `fail-on-cache-miss` - Fail the workflow if cache entry is not found. Default: `false`
-* `lookup-only` - Check if a cache entry exists for the given input(s) (key, restore-keys) without downloading the cache. Default: `false`
+* `lookup-only` - If true, only checks if cache entry exists and skips download. Default: `false`
 
 ### Outputs