packer: Fix style of documentation

packer/README.md

@@ -10,17 +10,17 @@ How to build one VM?
 
 1) Install Packer locally by https://www.packer.io/downloads.html, like (exemple):
 
-::
 
-  mkdir /opt/packer/
-  cd /opt/packer/
-  wget https://releases.hashicorp.com/packer/0.10.1/packer_0.10.1_linux_amd64.zip
-  unzip packer_0.10.1_linux_amd64.zip
+
+    mkdir /opt/packer/
+    cd /opt/packer/
+    wget https://releases.hashicorp.com/packer/0.10.1/packer_0.10.1_linux_amd64.zip
+    unzip packer_0.10.1_linux_amd64.zip
 
 2) Building one VM (example)::
   
-::
-  PATH=$PATH:/opt/packer packer build debian8.json
+
+    PATH=$PATH:/opt/packer packer build debian8.json
 
 3) You can watch qemu working on a linux machine (with X running), you just 
 have to edit the json. Replace '"headless": true' by '"headless": false'
@@ -30,9 +30,7 @@ How to build all VMs?
 
 You can use ansible for build all VMs locally, and gzip them:
 
-::
-
-  ansible-playbook build.yml -i localhost,
+    ansible-playbook build.yml -i localhost,
 
 How to upload to shacache?
 --------------------------
@@ -44,9 +42,7 @@ eventually, update shacache/shacache.cfg.
 BE CAREFULL, every time you run this command you upload the files to shacache,
 even if the files are there already.
 
-::
-
-  ansible-playbook upload.yml -i localhost,
+    ansible-playbook upload.yml -i localhost,
  
 How can I check if all images are on shacache?
 ----------------------------------------------
@@ -54,12 +50,12 @@ How can I check if all images are on shacache?
 You can use the script 'util/testupload.sh' to know if all generated images 
 are uploaded to shacache.
 
-::
 
-  bash util/testupload.sh
-  # expected output similat to this
-  OK 7d3f421e75ca114abcc20b4bed6cb6fc3d430b8c016b00a1d9cb1f14af6f3c342de6a5dd3c42b52de6f49cc5800bff7879884466edba1f6fef8623bb7448832c
-  OK a0247996af937d9b1ce86cac570b98b629c05c62860c8fd88d922171c141ea6a94a1d2122ba131bdcfa712712b4674be8e332940ade7adccee55a7de7bda0d18
+
+    bash util/testupload.sh
+    # expected output similat to this
+    OK 7d3f421e75ca114abcc20b4bed6cb6fc3d430b8c016b00a1d9cb1f14af6f3c342de6a5dd3c42b52de6f49cc5800bff7879884466edba1f6fef8623bb7448832c
+    OK a0247996af937d9b1ce86cac570b98b629c05c62860c8fd88d922171c141ea6a94a1d2122ba131bdcfa712712b4674be8e332940ade7adccee55a7de7bda0d18
 
 
 How to download one image from shacache?
@@ -67,26 +63,25 @@ How to download one image from shacache?
 
 The images are downloaded by the SHA512SUM hash of it. Example:
 
-::
 
-  sha512sum output-centos72/packer-centos72.gz
-  a0247991d2122ba131b...BIGHASH...fa712712b4674be8e332940ade7adccee55a7de7bda0d18 output-centos72/packer-centos72.gz
-  wget http://download.shacache.org/a0247991d2122ba131b...BIGHASH...fa712712b4674be8e332940ade7adccee55a7de7bda0d18
-  # if you want a good filename use '-O centos.gz'
-  # them you can gunzip
-  gunzip centos.gz
+    sha512sum output-centos72/packer-centos72.gz
+    a0247991d2122ba131b...BIGHASH...fa712712b4674be8e332940ade7adccee55a7de7bda0d18 output-centos72/packer-centos72.gz
+    wget http://download.shacache.org/a0247991d2122ba131b...BIGHASH...fa712712b4674be8e332940ade7adccee55a7de7bda0d18
+    # if you want a good filename use '-O centos.gz'
+    # them you can gunzip
+    gunzip centos.gz
 
 How to run locally a downloaded image?
 --------------------------------------
 
 In order to test one image (after unzip), you can run:
 
-::
-
-  bash util/quick-test IMAGE.qcow2
-  # or if you want use X and a monitor you can do:
-  bash util/quick-test packer-centos72 "-display sdl"
 
+    
+    bash util/quick-test IMAGE.qcow2
+    # or if you want use X and a monitor you can do:
+    bash util/quick-test packer-centos72 "-display sdl"
+    
 
 Extra
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