Add SYNCDATE to Miscellaneous section

Corrected a typo in the README regarding the removal of services.

README.md

@@ -6,7 +6,7 @@ This is a list of software (SaaS, PaaS, IaaS, etc.) and other offerings with fre
 
 The scope of this particular list is limited to things that infrastructure developers (System Administrator, DevOps Practitioners, etc.) are likely to find useful. We love all the free services out there, but it would be good to keep it on topic. It's a grey line sometimes, so this is opinionated; please don't feel offended if I don't accept your contribution.
 
-This list results from Pull Requests, reviews, ideas, and work done by 1600+ people. You can also help by sending [Pull Requests](https://github.com/ripienaar/free-for-dev) to add more services or remove ones whose offerings have changed or been retired.
+This list results from Pull Requests, reviews, ideas, and work done by 1600+ people. You can also help by sending [Pull Requests](https://github.com/ripienaar/free-for-dev) to add more services or remoe ones whose offerings have changed or been retired.
 
 [![Track Awesome List](https://www.trackawesomelist.com/badge.svg)](https://www.trackawesomelist.com/ripienaar/free-for-dev)
 
@@ -1695,6 +1695,7 @@ Update Time, five active automations, webhooks.
   * [Sunrise and Sunset](https://sunrisesunset.io/api/) - Get sunrise and sunset times for a given longitude and latitude.
   * [superfeedr.com](https://superfeedr.com/) — Real-time PubSubHubbub compliant feeds, export, analytics. Free with less customization
   * [SurveyMonkey.com](https://www.surveymonkey.com) — Create online surveys. Analyze the results online. The free plan allows only 10 questions and 100 responses per survey.
+  *  [SYNCDATE](https://syncdate.app) - Two-way Google Calendar sync. Free tier: 2 accounts, unlimited events.
   * [UUID Generator](https://newuuid.com/) - Generate UUID v1, UUID v4, UUID v7, GUID, Nil UUIDs, CUID v1/v2, NanoID, and ULID instantly with enterprise-grade
   * [Versionfeeds](https://versionfeeds.com) — Custom RSS feeds for releases of your favorite software. Have the latest versions of your programming languages, libraries, or loved tools in one feed. (The first 3 feeds are free)
   * [videoinu](https://videoinu.com) — Create and edit screen recordings and other videos online.