add missing `\` in ConnectionStrings

docs/en/Entity-Framework-Core-Migrations.md

@@ -173,7 +173,7 @@ First step is to change the connection string section inside all the `appsetting
 
 ````json
 "ConnectionStrings": {
-  "Default": "Server=(LocalDb)\MSSQLLocalDB;Database=BookStore;Trusted_Connection=True"
+  "Default": "Server=(LocalDb)\\MSSQLLocalDB;Database=BookStore;Trusted_Connection=True"
 }
 ````
 
@@ -184,7 +184,7 @@ Change it as shown below:
   "Default": "Server=(LocalDb)\\MSSQLLocalDB;Database=BookStore;Trusted_Connection=True",
   "AbpPermissionManagement": "Server=(LocalDb)\\MSSQLLocalDB;Database=BookStore_SecondDb;Trusted_Connection=True",
   "AbpSettingManagement": "Server=(LocalDb)\\MSSQLLocalDB;Database=BookStore_SecondDb;Trusted_Connection=True",
-  "AbpAuditLogging": "Server=(LocalDb)\MSSQLLocalDB;Database=BookStore_SecondDb;Trusted_Connection=True"
+  "AbpAuditLogging": "Server=(LocalDb)\\MSSQLLocalDB;Database=BookStore_SecondDb;Trusted_Connection=True"
 }
 ````
 

docs/en/Getting-Started-Running-Solution-Single-Layer.md

@@ -20,7 +20,7 @@ Check the **connection string** in the `appsettings.json` file under the `YourPr
 
 ````json
 "ConnectionStrings": {
-  "Default": "Server=(LocalDb)\MSSQLLocalDB;Database=BookStore;Trusted_Connection=True"
+  "Default": "Server=(LocalDb)\\MSSQLLocalDB;Database=BookStore;Trusted_Connection=True"
 }
 ````
 

docs/en/Getting-Started-Running-Solution.md

@@ -21,7 +21,7 @@ Check the **connection string** in the `appsettings.json` file under the {{if Ti
 
 ````json
 "ConnectionStrings": {
-  "Default": "Server=(LocalDb)\MSSQLLocalDB;Database=BookStore;Trusted_Connection=True"
+  "Default": "Server=(LocalDb)\\MSSQLLocalDB;Database=BookStore;Trusted_Connection=True"
 }
 ````
 

docs/zh-Hans/Getting-Started-Running-Solution.md

@@ -21,7 +21,7 @@
 
 ````json
 "ConnectionStrings": {
-  "Default": "Server=(LocalDb)\MSSQLLocalDB;Database=BookStore;Trusted_Connection=True"
+  "Default": "Server=(LocalDb)\\MSSQLLocalDB;Database=BookStore;Trusted_Connection=True"
 }
 ````