apply suggestions from code review

Co-authored-by: Emilio Alvarez Piñeiro <[email protected]>

docs/en/observability/synthetics-mfa.asciidoc

@@ -8,7 +8,7 @@
 Multi-factor Authentication (MFA) adds an essential layer of security to
 applications login processes, protecting against unauthorized access. A very
 common usecase in Synthetics is testing user journeys that involves websites
-behind protected behind MFA.
+protected behind MFA.
 
 Synthetics supports testing websites secured by Time-based One-Time Password
 (TOTP), a common MFA method that provides short lived One Time tokens that are
@@ -29,7 +29,7 @@ OTP Token: 123456
 
 == Using TOTP token inside the journeys
 
-Once the Synhetics TOTP Authentication is configured in your application, you
+Once the Synthetics TOTP Authentication is configured in your application, you
 can now use the OTP token in the synthetics browser journeys using the `mfa`
 object imported from `@elastic/synthetics`.
 

docs/en/serverless/synthetics/synthetics-mfa.mdx

@@ -14,7 +14,7 @@ tags: []
 Multi-factor Authentication (MFA) adds an essential layer of security to
 applications login processes, protecting against unauthorized access. A very
 common usecase in Synthetics is testing user journeys that involves websites
-behind protected behind MFA.
+protected behind MFA.
 
 Synthetics supports testing websites secured by Time-based One-Time Password
 (TOTP), a common MFA method that provides short lived One Time tokens that are
@@ -35,7 +35,7 @@ OTP Token: 123456
 
 ## Using TOTP token inside the journeys
 
-Once the Synhetics TOTP Authentication is configured in your application, you can now use the OTP token in the synthetics browser
+Once the Synthetics TOTP Authentication is configured in your application, you can now use the OTP token in the synthetics browser
 journeys using the `mfa` object imported from `@elastic/synthetics`.
 
 ```ts