Fix syntax of code blocks.

README.markdown

@@ -10,26 +10,26 @@ Usage
 -----
 #### Installation ####
 
- git clone https://github.com/ryanfreckleton/thinkgraph
- cd thinkgraph
- pip install .
+  git clone https://github.com/ryanfreckleton/thinkgraph
+  cd thinkgraph
+  pip install .
 
 #### Hello World ####
 
 Here's a basic use of graphthink to create an "evaporating cloud" diagram.
 
- # hello.tkg
- 1. Try new things
- 2. Don't try new things
- 3. We must be satisfied
- 4. We must be secure
- 5. Happiness
-
- 1 <> 2
- 1 -> 3
- 2 -> 4
- 3 -> 5
- 4 -> 5
+  # hello.tkg
+  1. Try new things
+  2. Don't try new things
+  3. We must be satisfied
+  4. We must be secure
+  5. Happiness
+ 
+  1 <> 2
+  1 -> 3
+  2 -> 4
+  3 -> 5
+  4 -> 5
 
 graphthink uses a very simple language.
 It is divided up into entities and relations.
@@ -39,7 +39,7 @@ An entity is any line of the form:
 
 Once you've created this file, running thinkgraph on it should generate a nice dot file.
 
- thinkgraph hello.tkg
+   thinkgraph hello.tkg
 
 Identifiers and Relations
 -------------------------
@@ -48,18 +48,18 @@ Labels are ASCII sentences and continue until the end of the line.
 
 Relations are how relationships between entiteis are graphed. The relationships are:
 
- <> conflict
- -> cause
- => feedback loop
+  <> conflict
+  -> cause
+  => feedback loop
 
 Color/Styling
 -------------
 Styling of entitites is determined by a code after the period.
 
- 1.inj An action
- 2.obs An obstacle
- 3.green Something green (and good)
- 4.red Something red and (bad)
+  1.inj An action
+  2.obs An obstacle
+  3.green Something green (and good)
+  4.red Something red and (bad)
 
 
 TODO