docs: fix typos

Signed-off-by: Yu Ding <dingelish@gmail.com>

Author: dingelish

SampleCode/LocalAttestation/README.txt

@@ -20,7 +20,7 @@ How to Build the Sample Code
 		$ make SGX_MODE=SIM SGX_DEBUG=0
         g. Use Local Attestation 2.0 protocol, Hardware Mode, Debug build:
         $ make LAv2=1
-           Note: Local Attestaion 2.0 protocol will be used if 'LAv2' is defined.
+           Note: Local Attestation 2.0 protocol will be used if 'LAv2' is defined.
 
 
 When build is successful, you can find executable binaries in "bin" sub-folder.

SampleCode/Switchless/README.txt

@@ -1,5 +1,5 @@
 ------------------------
-Purpose of Switchlesss
+Purpose of Switchless
 ------------------------
 The project demonstrates how to use Fast OCalls provided by sgx_switchless.
 

docker/build/README.md

@@ -31,7 +31,7 @@ $ ./build_and_run_sample_docker.sh
 
 The Dockerfile specifies 3 image build targets:
 1. builder: Builds PSW and SDK bin installers from source. This requires downloading the prebuilt AEs and optimized libs from 01.org.
-2. aesm: Takes the PSW installer from builder to install and run the AESM deamon.
+2. aesm: Takes the PSW installer from builder to install and run the AESM daemon.
 3. sample: Installs the SDK installer from builder, then builds and runs the SampleEnclave app
 
 - [build_and_run_aesm_docker.sh](./build_and_run_aesm_docker.sh): Shows how to build and run the AESM image in Docker. This will start the AESM service listening to a named socket, mounted in /var/run/aesmd in the container from the host /tmp/aesmd.