Improve xpath

xpath.md

@@ -127,21 +127,6 @@ You can use nodes inside predicates.
   //ul[li]
 ```
 
-### Nesting predicates
-This returns `<section>` if it has an `<h1>` descendant with `id='hi'`.
-
-```
-//section[//h1[@id='hi']]
-```
-
-### Predicate order
-Order is significant, these two are different.
-
-```sh
-a[1][@href='/']
-a[@href='/'][1]
-```
-
 ### Indexing
 Use `[]` with a number, or `last()` or `position()`.
 
@@ -152,25 +137,47 @@ Use `[]` with a number, or `last()` or `position()`.
 //ol/li[position()=2]   # ...same as above
 ```
 
+### Predicate order
+Order is significant, these two are different.
+
+```sh
+a[1][@href='/']
+a[@href='/'][1]
+```
+
+### Nesting predicates
+This returns `<section>` if it has an `<h1>` descendant with `id='hi'`.
+
+```
+//section[//h1[@id='hi']]
+```
+
+
 Functions
 ---------
 
 ### Node functions
 
-    text()                     # button[text()="Submit"]
-    name()                     # *[name()='div']
+```sh
+name()                     # //[starts-with(name(), 'h')]
+text()                     # //button[text()="Submit"]
+                           # //button/text()
 lang(str)
 namespace-uri()
 
-    count()                    # table[count(tr)=1]
-    position()                 # ol/li[position()=2]
+count()                    # //table[count(tr)=1]
+position()                 # //ol/li[position()=2]
+```
 
 ### Boolean functions
 
+```sh
 not(expr)                  # button[not(text()="Submit")]
+```
 
 ### String functions
 
+```sh
 contains()                 # font[contains(@class,"head")]
 starts-with()              # font[starts-with(@class,"head")]
 ends-with()                # font[ends-with(@class,"head")]
@@ -182,12 +189,15 @@ Functions
 translate()
 normalize-space()
 string-length()
+```
 
 ### Type conversion
 
+```sh
 string()
 number()
 boolean()
+```
 
 Axes
 ----