Polish some documents

demos/README.md

@@ -14,9 +14,13 @@ This set of demos shows how the Occlum toolchain can be used with different buil
 
 This set of demos shows how real-world apps can be easily run inside SGX enclaves with Occlum.
 
+* [fish](fish/): A demo of [FISH](https://fishshell.com) shell script.
+* [flink](flink/): A demo of [Apache Flink](https://flink.apache.org).
+* [font](font/font_support_for_java): A demo of supporting font with Java.
 * [https_server](https_server/): A HTTPS file server based on [Mongoose Embedded Web Server Library](https://github.com/cesanta/mongoose).
 * [grpc](grpc/): A client and server communicating through [gRPC](https://grpc.io).
 * [openvino](openvino/) A benchmark of [OpenVINO Inference Engine](https://docs.openvinotoolkit.org/2019_R3/_docs_IE_DG_inference_engine_intro.html).
+* [redis](redis/): A demo of [redis](https://redis.io).
 * [sqlite](sqlite/) A demo of [SQLite](https://www.sqlite.org) SQL database engine.
 * [tensorflow_lite](tensorflow_lite/): A demo and benchmark of [Tensorflow Lite](https://www.tensorflow.org/lite) inference engine.
 * [xgboost](xgboost/): A demo of [XGBoost](https://xgboost.readthedocs.io/en/latest).
@@ -25,7 +29,7 @@ This set of demos shows how real-world apps can be easily run inside SGX enclave
 
 This set of demos shows how apps written with popular programming languages can be run inside SGX enclaves with Occlum.
 
-* [golang](golang/): A [Golang](https://golang.org) web server demo app.
+* [golang](golang/): A collection of [Golang](https://golang.org) program demos.
 * [java](java/): A demo of [Java](https://openjdk.java.net) program.
 * [python](python/) A demo of [Python](https://www.python.org) program.
 * [rust](rust/) A demo of [Rust](https://www.rust-lang.org) program.

demos/flink/README.txt

@@ -1,7 +1,9 @@
 1. Run the flink jobmanager
     ./run_flink_jobmanager_on_host.sh
+
 2. Run the taskManager
     ./run_flink_on_occlum_glibc.sh tm
+
 3. Run flink jobs example
     ./run_flink_on_occlum.sh task
 

demos/font/font_support_for_java/README.md

@@ -1,4 +1,4 @@
-# Make Occlum support font
+# Support font with Java
 
 This project demonstrates how Occlum support font with a Java demo in SGX enclaves.
 
@@ -10,26 +10,26 @@ Our demos use Dragonwell as the default JDK, you are free to change to OpenJDK b
 
 ## Demo: Java excel file writting with Poi
 
-We provide a excel file writting demo to show how to make occlum support font inside SGX enclaves.
+We provide an excel file writting demo to show how to make occlum support font inside SGX enclaves.
 
 ### Create demo and build it
 
-Excel writting demo is created in create_java_font_app.sh, and the script also creates a build.gradle to build demo. Then a docker container is created to
-build the demo and we will get a fat jar file. The docker container is based on Alpine, we will collect all dependency libs and font in document font-lib
-from the container.
+The excel writting demo is created in `create_java_font_app.sh`, and the script also creates a `build.gradle` to build demo. Then a docker container is created to build the demo and we will get a fat jar file. The docker container is based on Alpine, we will collect all dependent libs and font in document font-lib from the container.
 
 ### Run demo in Occlum container
 
-Create occlum instance and copy all libs into occlum image which font dependence in occlum container, then build the occlum image and run the demo.
+Create occlum instance and copy all libs into occlum image which font depends in occlum container, then build the occlum image and run the demo.
 
 ### How to Run
 
-Step 1: Create and build demo, also collect font dependency occlum needs
-
+Step 1: Create and build demo, it also collects the font dependencies
+```
 ./create_java_font_app.sh
+```
 
-Step 2: Create occlum instance and run the demo in occlum's latest docker image release
-
+Step 2: Create occlum instance and run the demo in occlum's latest docker image
+```
 docker run -it --device /dev/isgx --rm -v `pwd`:`pwd` -w `pwd` occlum/occlum:[latest version]-ubuntu18.04 `pwd`/run_java_font_app_internal.sh
+```
 
-Step 3: To check whether it works, a Demo.xlsx file should be created in occlum image host path.
+Step 3: To check whether it works, a `Demo.xlsx` file should be created in the host path of occlum instance.

demos/redis/README.txt

@@ -1,16 +1,17 @@
-1.Download and build
+1. Download and build
    occlum-gcc:
       ./download_and_build_redis.sh
    glibc:
       ./download_and_build_redis_glibc.sh
+
 2. Run redis
    occlum-gcc:
       ./run_occlum_redis.sh
    glibc:
       ./run_occlum_redis_glibc.sh
+
 3. Benchmark
    occlum-gcc:
       ./benchmark.sh
    glibc:
       ./benchmark_glibc.sh
-

docs/occlum_mount.md

@@ -37,6 +37,6 @@ mkdir <path>
 
 Step 2: Mount the secure FS at the newly created mount point
 ```
-occlum mount [--sign-key <key_path>] [--sign-tool <tool_path>] <path>
+occlum mount [--sign-key <key_path>] [--sign-tool <tool_path>] [--image-key <key_path>] <path>
 ```
 After mounting the secure FS successfully, you can access and manipulate the FS from the mount point as easy as regular Linux FS.