update docs

Author: jordanpowell88

docs/advanced-techniques.md

@@ -147,8 +147,6 @@ use guards can either be global or more granular. We only want to apply the
 guard to the `reset()` method, so we can use the `@UseGuards()` decorator and
 pass the `TestOnlyGuard` as a parameter to it:
 
-a
-
 ```ts
 @UseGuards(TestEnvOnlyGuard)
 @Post('/reset')

docs/crud.md

@@ -17,7 +17,7 @@ it("should get single mission", () => {
   cy.get("@response").its("status").should("equal", 200);
   cy.get("@response").its("body").should("include", {
     id: 1,
-    description: "take out the trash",
+    description: "save the galaxy",
     complete: false,
   });
 });