added some more docs

qse/doc/page/awk-embed.md

@@ -0,0 +1,28 @@
+Embedding Guid                                                {#embedding-guide}
+================================================================================
+
+Overview
+---------
+
+The design of the library is divided into two layers: core and standard.
+The core layer is a skeleton implmenetation that requires various callbacks
+to be useful. The standard layer provides these callbacks in a general respect.
+For example, qse_awk_open() in the core layer requires a set of primitive 
+functions to be able to create an awk object while qse_awk_openstd() provides 
+qse_awk_open() with a standard set of primitive functions.
+
+Embedding QSEAWK involves the following steps in the simplest form:
+
+ - open a new awk object
+ - parse in a source script
+ - open a new runtime context
+ - execute pattern-action blocks or call a function
+ - decrement the reference count of the return value
+ - close the runtime context
+ - close the awk object
+
+\includelineno awk01.c
+
+You can create multiple runtime contexts over a single awk object. It is useful
+if you want to execute the same AWK script over different data streams.
+

qse/doc/page/installation.md

@@ -100,7 +100,7 @@ extra information useful for debugging. The default mode is **release**.
  debug   | enable-debug   | BUILD=debug
  release | disable-debug  | BUILD=release
 
-### Character Type ###  
+### Character Type ###
 
 You can choose between the wide charcter type and the multi-byte character
 type as a basic character type represented in the #qse_char_t type. The default