Merge pull request #13183 from taosdata/docs/cdiwadkar16-patch-4-29

docs:cdiwadkar16-patch-4-29 - minor

docs-en/12-taos-sql/10-json.md

@@ -4,7 +4,7 @@ title: JSON Type
 
 ## Syntax
 
-1. Tag of JSON type
+1. Tag of type JSON
 
    ```sql
    create STable s1 (ts timestamp, v1 int) tags (info json);
@@ -12,7 +12,7 @@ title: JSON Type
    create table s1_1 using s1 tags ('{"k1": "v1"}');
    ```
 
-2. -> Operator of JSON
+2. "->" Operator of JSON
 
    ```sql
    select * from s1 where info->'k1' = 'v1';
@@ -20,7 +20,7 @@ title: JSON Type
    select info->'k1' from s1;
    ```
 
-3. contains Operator of JSON
+3. "contains" Operator of JSON
 
    ```sql
    select * from s1 where info contains 'k2';
@@ -30,7 +30,7 @@ title: JSON Type
 
 ## Applicable Operations
 
-1. When JSON data type is used in `where`, `match/nmatch/between and/like/and/or/is null/is no null` can be used but `in` can't be used.
+1. When a JSON data type is used in `where`, `match/nmatch/between and/like/and/or/is null/is no null` can be used but `in` can't be used.
 
    ```sql
    select * from s1 where info->'k1' match 'v*';
@@ -42,9 +42,9 @@ title: JSON Type
    select * from s1 where info->'k1' is not null;
    ```
 
-2. Tag of JSON type can be used in `group by`, `order by`, `join`, `union all` and sub query, for example `group by json->'key'`
+2. A tag of JSON type can be used in `group by`, `order by`, `join`, `union all` and sub query; for example `group by json->'key'`
 
-3. `Distinct` can be used with tag of JSON type
+3. `Distinct` can be used with a tag of type JSON
 
    ```sql
    select distinct info->'k1' from s1;
@@ -52,9 +52,9 @@ title: JSON Type
 
 4. Tag Operations
 
-   The value of JSON tag can be altered. Please note that the full JSON will be overriden when doing this.
+   The value of a JSON tag can be altered. Please note that the full JSON will be overriden when doing this.
 
-   The name of JSON tag can be altered. A tag of JSON type can't be added or removed. The column length of a JSON tag can't be changed.
+   The name of a JSON tag can be altered. A tag of JSON type can't be added or removed. The column length of a JSON tag can't be changed.
 
 ## Other Restrictions
 
@@ -64,17 +64,17 @@ title: JSON Type
 
 - JSON format：
 
-  - The input string for JSON can be empty, i.e. "", "\t", or NULL, but can't be non-NULL string, bool or array.
-  - object can be {}, and the whole JSON is empty if so. Key can be "", and it's ignored if so.
-  - value can be int, double, string, boll or NULL, can't be array. Nesting is not allowed, that means value can't be another JSON.
+  - The input string for JSON can be empty, i.e. "", "\t", or NULL, but it can't be non-NULL string, bool or array.
+  - object can be {}, and the entire JSON is empty if so. Key can be "", and it's ignored if so.
+  - value can be int, double, string, bool or NULL, and it can't be an array. Nesting is not allowed which means that the value of a key can't be JSON.
   - If one key occurs twice in JSON, only the first one is valid.
   - Escape characters are not allowed in JSON.
 
-- NULL is returned if querying a key that doesn't exist in JSON.
+- NULL is returned when querying a key that doesn't exist in JSON.
 
 - If a tag of JSON is the result of inner query, it can't be parsed and queried in the outer query.
 
-For example, the below SQL statements are not supported.
+For example, the SQL statements below are not supported.
 
 ```sql;
 select jtag->'key' from (select jtag from STable);