Merge pull request #380 from sergioescala/fixing-typos

Fixing typos

site/src/site/sphinx/en/async.md

@@ -38,7 +38,7 @@ You can see that there is currently a background job executing:
 
 ## 3. Suspend and cancel job
 
-When the job is executing in the foreground, for example, directly executing the command `trace Test t`, or executing the background job command `trace Test t &`, then putting the job back to the forground via `fg` command, the console cannot continue to execute other command, but can receive and process the following keyboard events:
+When the job is executing in the foreground, for example, directly executing the command `trace Test t`, or executing the background job command `trace Test t &`, then putting the job back to the foreground via `fg` command, the console cannot continue to execute other command, but can receive and process the following keyboard events:
 
 * ‘ctrl + z’: Suspend the job, the job status will change to `Stopped`, and the job can be restarted by `bg <job-id>` or `fg <job-id>`
 * ‘ctrl + c’: Stop the job

site/src/site/sphinx/en/manual-install.md

@@ -91,7 +91,7 @@ If you fail to boot Arthas with the provided batch file, you could try to assemb
     * `-telnet-port 3658 -http-port 8563` specifies telnet and HTTP ports for remote access
     * `-core /tmp/arthas-packaging/arthas-core.jar -agent /tmp/arthas-packaging/arthas/arthas-agent.jar` specifies core/agent jar package
 
-    If you are running on JDK 1.9 or above，then it's unncessary to add `tools.jar` in option `-Xbootclasspath`.
+    If you are running on JDK 1.9 or above，then it's unnecessary to add `tools.jar` in option `-Xbootclasspath`.
     
     You can find the logs from `~/logs/arthas/arthas.log`.
 

site/src/site/sphinx/en/sc.md

@@ -57,7 +57,7 @@ sc
   Affect(row-cnt:1) cost in 875 ms.
   ```
 
-* View class fileds
+* View class fields
 
   ```bash
   $ sc -d -f demo.MathGame

site/src/site/sphinx/en/tt.md

@@ -153,7 +153,7 @@ F.Y.I
 
 1. **Loss** of the `ThreadLocal`
 
-    Arthas save params into an array, then invoke the method with the params again. The method execute in another thead, so the `ThreadLocal` **lost**.
+    Arthas save params into an array, then invoke the method with the params again. The method execute in another thread, so the `ThreadLocal` **lost**.
 
 1. params may be modified
 

site/src/site/sphinx/quick-start.md

@@ -23,7 +23,7 @@ java -jar arthas-boot.jar
 ```
 
 * 执行该程序的用户需要和目标进程具有相同的权限。比如以`admin`用户来执行：`sudo su admin && java -jar arthas-boot.jar` 或 `sudo -u admin -EH java -jar arthas-boot.jar`。
-* 如果attatch不上目标进程，可以查看`~/logs/arthas/` 目录下的日志。
+* 如果attach不上目标进程，可以查看`~/logs/arthas/` 目录下的日志。
 * 如果下载速度比较慢，可以使用aliyun的镜像：`java -jar arthas-boot.jar --repo-mirror aliyun --use-http`
 * `java -jar arthas-boot.jar -h` 打印更多参数信息。