Fix demo app link and minor issues (#1926)

Author: alexandratran

sdk-sidebar.js

@@ -16,7 +16,7 @@ const sidebar = {
         {
           type: 'link',
           label: 'Try demo dapp',
-          href: 'https://metamask-sdk-examples-relink.vercel.app/',
+          href: 'https://metamask-sdk-examples.vercel.app/',
         },
       ],
     },

services/reference/starknet/json-rpc-methods/starknet_call.mdx

@@ -14,7 +14,7 @@ This method does not change the network state.
 - `request`: [*Required*] The function call object containing:
   - `contract_address`: (string) [*Required*] Address the transaction is sent from.
   - `entry_point_selector`: (string) [*Required*] Smart contract entry point selector.
-  - `calldata`: (array of strings)[*Required*] The parameters passed to the function.
+  - `calldata`: (array of strings) [*Required*] The parameters passed to the function.
 - `block_id`: [*Required*] The block parameter object containing one of the following:
   - `block_hash`: (string) Block hash.
   - `block_number`: (integer) Decimal block number.

snaps/learn/tutorials/gas-estimation.md

@@ -75,7 +75,7 @@ mkdir packages/snap/images
 
 Download
 [this `gas.svg` icon file](https://raw.githubusercontent.com/Montoya/gas-fee-snap/main/packages/snap/images/gas.svg)
-into that `ìmages` folder.  
+into that `images` folder.  
 
 <details>
   <summary>Icon attribution</summary>

wallet/how-to/use-non-evm-networks/starknet/send-starknet-transactions.md

@@ -169,7 +169,7 @@ The following is a full, simplified example of connecting to a Starknet account
         params: {
           snapId: "npm:@consensys/starknet-snap",
           request: {
-            method: "starkNet_executeTxn"
+            method: "starkNet_executeTxn",
             params: requestParams
           }
         }