Update README.md Removed extra "the".

doc/ci/yaml/README.md

@@ -4896,7 +4896,7 @@ reused in the `test` job:
       - !reference [.teardown, after_script]
   ```
 
-In the following example, `test-vars-1` reuses the all the variables in `.vars`, while `test-vars-2`
+In the following example, `test-vars-1` reuses all the variables in `.vars`, while `test-vars-2`
 selects a specific variable and reuses it as a new `MY_VAR` variable.
 
 ```yaml