regenerate READMEs

exercises/armstrong-numbers/README.md

 For example:
 
 - 9 is an Armstrong number, because `9 = 9^1 = 9`
-- 10 is *not* an Armstrong number, because `10 != 1^2 + 0^2 = 2`
+- 10 is *not* an Armstrong number, because `10 != 1^2 + 0^2 = 1`
 - 153 is an Armstrong number, because: `153 = 1^3 + 5^3 + 3^3 = 1 + 125 + 27 = 153`
 - 154 is *not* an Armstrong number, because: `154 != 1^3 + 5^3 + 4^3 = 1 + 125 + 64 = 190`
 

exercises/bracket-push/README.md

 # Bracket Push
 
-Given a string containing brackets `[]`, braces `{}` and parentheses `()`,
-verify that all the pairs are matched and nested correctly.
+Given a string containing brackets `[]`, braces `{}`, parentheses `()`,
+or any combination thereof, verify that any and all pairs are matched
+and nested correctly.
 
 # Java Tips
 

exercises/crypto-square/README.md

 
 For example, the sentence
 
-> If man was meant to stay on the ground, god would have given us roots.
+```text
+"If man was meant to stay on the ground, god would have given us roots."
+```
 
 is normalized to:
 
-> ifmanwasmeanttostayonthegroundgodwouldhavegivenusroots
+```text
+"ifmanwasmeanttostayonthegroundgodwouldhavegivenusroots"
+```
 
 The plaintext should be organized in to a rectangle.  The size of the
 rectangle (`r x c`) should be decided by the length of the message,
 `c = 8` and `r = 7`:
 
 ```text
-ifmanwas
-meanttos
-tayonthe
-groundgo
-dwouldha
-vegivenu
-sroots
+"ifmanwas"
+"meanttos"
+"tayonthe"
+"groundgo"
+"dwouldha"
+"vegivenu"
+"sroots  "
 ```
 
 The coded message is obtained by reading down the columns going left to
 The message above is coded as:
 
 ```text
-imtgdvsfearwermayoogoanouuiontnnlvtwttddesaohghnsseoau
+"imtgdvsfearwermayoogoanouuiontnnlvtwttddesaohghnsseoau"
 ```
 
 Output the encoded text in chunks that fill perfect rectangles `(r X c)`,
 chunks with a single trailing space.
 
 ```text
-imtgdvs fearwer mayoogo anouuio ntnnlvt wttddes aohghn  sseoau 
+"imtgdvs fearwer mayoogo anouuio ntnnlvt wttddes aohghn  sseoau "
 ```
 
 Notice that were we to stack these, we could visually decode the
 cyphertext back in to the original message:
 
 ```text
-imtgdvs
-fearwer
-mayoogo
-anouuio
-ntnnlvt
-wttddes
-aohghn
-sseoau
+"imtgdvs"
+"fearwer"
+"mayoogo"
+"anouuio"
+"ntnnlvt"
+"wttddes"
+"aohghn "
+"sseoau "
 ```
 
 # Running the tests