Trivial documentation and comment fixes

INSTALL

@@ -3,5 +3,5 @@ To build and install the SHMT run:
 	./configure
 	make
 
-And finally installing it by:
+And finally install it via:
 	make install

README.md

@@ -25,9 +25,11 @@ SHMT:
 ## Limitations
 
 * Supported maximum number of data array elements is
-  2^26 (67.108.864 on x32 systems) and 2^31 (2.147.483.648
-  on x64 systems).
+  2^26 (67,108,864 on 32 bit systems) and 2^31 (2,147,483,648
+  on 64 bit systems).
 * The data array keys and values are always cast to string.
+* Data files cannot be exchanged between 32 bit and 64 bit 
+  systems or systems with different endianness.
 
 
 ## PHP Class
@@ -36,7 +38,7 @@ SHMT:
 public static boolean SHMT::create(string $filename, array $array)
 ```
 
-* Creates a SHMT from the `$array` and writes it into the `$filename`
+* Creates a SHMT from the `$array` and writes it into the file `$filename`
 * Returns `true` on success
 * Throws exceptions on errors
 

shmt.c

@@ -49,7 +49,7 @@ int shmtWriteItem(struct _shmtCreatorItem *src, struct _shmtItem *shmtItem, FILE
 	shmtItem->val_len = src->val_len;
 
 	if (src->key_len) {
-		/* Check the site_t overflow */
+		/* Check for site_t overflow */
 		if ((shmtItem->key_pos + shmtItem->key_len) < shmtItem->key_pos) {
 			return 0;
 		} else if (fwrite(src->key, 1, src->key_len, file) != (size_t)src->key_len) {
@@ -58,7 +58,7 @@ int shmtWriteItem(struct _shmtCreatorItem *src, struct _shmtItem *shmtItem, FILE
 	}
 
 	if (src->val_len) {
-		/* Check the site_t overflow */
+		/* Check for site_t overflow */
 		if ((shmtItem->key_pos + shmtItem->key_len + shmtItem->val_len) <= shmtItem->key_pos) {
 			return 0;
 		} else if (fwrite(src->val, 1, src->val_len, file) != (size_t)src->val_len) {

shmt.h

@@ -53,7 +53,7 @@
 	{
 		uint32_t	mark;			/* The plausibility check mark								*/
 		uint16_t	version;		/* The file compatibility check mark						*/
-		uint8_t		system;			/* The system compatibility check mark (x32/x64)			*/
+		uint8_t		system;			/* The system compatibility check mark (32/64 bit)			*/
 		uint32_t	mask;			/* The hash map mask										*/
 		size_t		mapSize;		/* The total hash map table size							*/
 		size_t		hashSize;		/* The size of the "hash" part in the hash map				*/