Fix syntax error in UpdateMovieReview struct by adding missing comma …

…in account attribute (#445)

Fix UpdateMovieReview struct: Add missing comma in account attribute

The omission of a comma in the `account` attribute macro was causing a syntax error:

error: expected non-macro attribute, found attribute macro `account`

This commit adds the missing comma, resolving the error and allowing the code to compile correctly.

content/courses/onchain-development/anchor-pdas.md

@@ -5,7 +5,7 @@ objectives:
   - Enable and use the `init_if_needed` constraint
   - Use the `realloc` constraint to reallocate space on an existing account
   - Use the `close` constraint to close an existing account
-description:
+description: 
   "Store arbitrary data on Solana, using PDAs, an inbuilt key-value store."
 ---
 
@@ -674,7 +674,7 @@ pub struct UpdateMovieReview<'info> {
         mut,
         seeds = [title.as_bytes(), initializer.key().as_ref()],
         bump,
-        realloc = DISCRIMINATOR + MovieAccountState::INIT_SPACE
+        realloc = DISCRIMINATOR + MovieAccountState::INIT_SPACE,
         realloc::payer = initializer,
         realloc::zero = true,
     )]