chore: update roadmap content json (#8867)

Co-authored-by: kamranahmedse <4921183+kamranahmedse@users.noreply.github.com>

public/roadmap-content/android.json

@@ -146,11 +146,6 @@
         "url": "https://docs.gradle.org/current/userguide/getting_started_eng.html",
         "type": "article"
       },
-      {
-        "title": "Get going with Gradle - PDF",
-        "url": "https://assets.gradlehero.com/get-going-with-gradle/get-going-with-gradle-book.pdf",
-        "type": "article"
-      },
       {
         "title": "Explore top posts about Gradle",
         "url": "https://app.daily.dev/tags/gradle?ref=roadmapsh",

public/roadmap-content/aspnet-core.json

@@ -31,7 +31,7 @@
     "links": [
       {
         "title": "C# official website?",
-        "url": "https://learn.microsoft.com/en-us/dotnet/csharp//",
+        "url": "https://learn.microsoft.com/en-us/dotnet/csharp/",
         "type": "article"
       },
       {

public/roadmap-content/qa.json

@@ -122,7 +122,7 @@
       },
       {
         "title": "What Do Software Testers Do?",
-        "url": "https://www.ministryoftesting.com/dojo/lessons/what-do-software-testers-do-version-0-1",
+        "url": "https://www.ministryoftesting.com/articles/what-do-software-testers-do",
         "type": "article"
       },
       {

public/roadmap-content/sql.json

@@ -28,7 +28,7 @@
   },
   "nhUKKWyBH80nyKfGT8ErC": {
     "title": "Learn the Basics",
-    "description": "SQL, which stands for Structured Query Language, is a programming language that is used to communicate with and manage databases. SQL is a standard language for manipulating data held in relational database management systems (RDBMS), or for stream processing in a relational data stream management system (RDSMS). It was first developed in the 1970s by IBM.\n\nSQL consists of several components, each serving their own unique purpose in database communication:\n\n*   **Queries:** This is the component that allows you to retrieve data from a database. The SELECT statement is most commonly used for this purpose.\n*   **Data Definition Language (DDL):** It lets you to create, alter, or delete databases and their related objects like tables, views, etc. Commands include CREATE, ALTER, DROP, and TRUNCATE.\n*   **Data Manipulation Language (DML):** It lets you manage data within database objects. These commands include SELECT, INSERT, UPDATE, and DELETE.\n*   **Data Control Language (DCL):** It includes commands like GRANT and REVOKE, which primarily deal with rights, permissions and other control-level management tasks for the database system.\n\nSQL databases come in a number of forms, such as Oracle Database, Microsoft SQL Server, and MySQL. Despite their many differences, all SQL databases utilise the same language commands - SQL.\n\nLearn more about SQL from the following resources:",
+    "description": "SQL, which stands for Structured Query Language, is a programming language that is used to communicate with and manage databases. SQL is a standard language for manipulating data held in relational database management systems (RDBMS), or for stream processing in a relational data stream management system (RDSMS). It was first developed in the 1970s by IBM.\n\nSQL consists of several components, each serving their own unique purpose in database communication:\n\n*   **Queries:** This is the component that allows you to retrieve data from a database. The SELECT statement is most commonly used for this purpose.\n*   **Data Definition Language (DDL):** It lets you create, alter, or delete databases and their related objects like tables, views, etc. Commands include CREATE, ALTER, DROP, and TRUNCATE.\n*   **Data Manipulation Language (DML):** It lets you manage data within database objects. These commands include SELECT, INSERT, UPDATE, and DELETE.\n*   **Data Control Language (DCL):** It includes commands like GRANT and REVOKE, which primarily deal with rights, permissions and other control-level management tasks for the database system.\n\nSQL databases come in a number of forms, such as Oracle Database, Microsoft SQL Server, and MySQL. Despite their many differences, all SQL databases utilise the same language commands - SQL.\n\nLearn more about SQL from the following resources:",
     "links": [
       {
         "title": "SQL Tutorial - Mode",

public/roadmap-content/system-design.json

@@ -731,11 +731,6 @@
     "title": "Asynchronism",
     "description": "Asynchronous workflows help reduce request times for expensive operations that would otherwise be performed in-line. They can also help by doing time-consuming work in advance, such as periodic aggregation of data.\n\nTo learn more, visit the following links:",
     "links": [
-      {
-        "title": "Asynchronous Thinking for Microservice System Design",
-        "url": "https://www.datamachines.io/blog/asynchronous-thinking-for-microservice-system-design",
-        "type": "article"
-      },
       {
         "title": "Patterns for microservices - Sync vs Async",
         "url": "https://medium.com/inspiredbrilliance/patterns-for-microservices-e57a2d71ff9e",