diff --git a/problems/misc/survey/README.md b/problems/misc/survey/README.md
index 0713d1c..ca08a94 100644
--- a/problems/misc/survey/README.md
+++ b/problems/misc/survey/README.md
@@ -8,17 +8,17 @@ The directory *must* contain a `problem.json`; this information will be loaded i
 
 ```javascript
 {
-	"pid": "survey",					// required
-	"title": "Survey",					// required
-	"description": "Take our survey.",	// required - can use HTML
-	"hint": "No hint!",					// optional - defaults to ""
-	"category": "Miscellaneous",		// required
-	"autogen": false,					// optional - defaults to false
-	"programming": false,				// optional - defaults to false
-	"value": 20,						// required - integer out of 800
-	"bonus": 0,							// optional - defaults to 0; see below for details
-	"threshold": 0,						// recommended - defaults to 0; see below for details
-	"weightmap": { }					// recommended - defaults to {}
+    "pid": "survey",                    // required
+    "title": "Survey",                  // required
+    "description": "Take our survey.",  // required - can use HTML
+    "hint": "No hint!",                 // optional - defaults to ""
+    "category": "Miscellaneous",        // required
+    "autogen": false,                   // optional - defaults to false
+    "programming": false,               // optional - defaults to false
+    "value": 20,                        // required - integer out of 800
+    "bonus": 0,                         // optional - defaults to 0; see below for details
+    "threshold": 0,                     // recommended - defaults to 0; see below for details
+    "weightmap": { }                    // recommended - defaults to {}
 }
 ```
 
@@ -28,8 +28,8 @@ The directory must *also* contain a `grader.py`; this script must contain a `gra
 
 ```python
 {
-	"correct": True # or False, indicating whether the answer is correct.
-	"message": "Congratulations!" # a custom message for feedback on the website.
+    "correct": True # or False, indicating whether the answer is correct.
+    "message": "Congratulations!" # a custom message for feedback on the website.
 }
 ```
 
@@ -37,9 +37,9 @@ For the most part, checking in flags will simply be a matter of comparing string
 
 ```python
 def grade(tid, answer):
-	if answer.find("csrf_protection_would_probably_have_been_a_good_idea_:/") != -1:
-		return { "correct": True, "message": "Indeed." }
-	return { "correct": False, "message": "Nope, that's not quite right." }
+    if answer.find("csrf_protection_would_probably_have_been_a_good_idea_:/") != -1:
+        return { "correct": True, "message": "Indeed." }
+    return { "correct": False, "message": "Nope, that's not quite right." }
 ```
 
 You can copy-paste the above example into your grader and make any necessary adjustments. If you were wondering why we don't just compare strings, some problems may warrant a more complicated grader, like the problem H4SH3D from last year:
@@ -48,31 +48,31 @@ You can copy-paste the above example into your grader and make any necessary adj
 import binascii
 
 def compute(uinput):
-	if len(uinput) > 32: return ""
-	blen = 32
-	n = blen - len(uinput) % blen
-	if n == 0:
-		n = blen
-	pad = chr(n)
-	ninput = uinput + pad * n
-	r = ""
-	for i in range(0, blen, 4):
-		s = ninput[i:i+4]
-		h = 0
-		for j in range(len(s)):
-			h = (h << 4) + ord(s[j])
-			g = h & 4026531840
-			if not(g == 0):
-				h ^= g >> 24
-			h &= ~g
-		r += chr(h % 256)
-	h = binascii.hexlify(bytes(r, 'Latin-1'))
-	return h
+    if len(uinput) > 32: return ""
+    blen = 32
+    n = blen - len(uinput) % blen
+    if n == 0:
+        n = blen
+    pad = chr(n)
+    ninput = uinput + pad * n
+    r = ""
+    for i in range(0, blen, 4):
+        s = ninput[i:i+4]
+        h = 0
+        for j in range(len(s)):
+            h = (h << 4) + ord(s[j])
+            g = h & 4026531840
+            if not(g == 0):
+                h ^= g >> 24
+            h &= ~g
+        r += chr(h % 256)
+    h = binascii.hexlify(bytes(r, 'Latin-1'))
+    return h
 
 def grade(tid, answer):
-	if compute(answer) == compute("they_see_me_hashin_they_hatin"):
-		return { "correct": True, "message": "They see me hashin' they hatin'" }
-	return { "correct": False, "message": "Nope." }
+    if compute(answer) == compute("they_see_me_hashin_they_hatin"):
+        return { "correct": True, "message": "They see me hashin' they hatin'" }
+    return { "correct": False, "message": "Nope." }
 ```
 
 ## `static`
@@ -106,20 +106,20 @@ Problem unlocking is managed through a mechanism that involves a threshold and w
 
 ```javascript
 {
-	"pid": "launch-code",
-	"threshold": 5,
-	"weightmap":	{
-		"php3": 1,
-		"faster-math": 1,
-		"biggerisbetter": 1,
-		"cave-johnson": 1,
-		"blackmesa": 1,
-		"rsa3": 1,
-		"yandere": 1,
-		"rsi": 1,
-		"adoughbee": 1,
-		"infinity_star": 1
-	}
+    "pid": "launch-code",
+    "threshold": 5,
+    "weightmap":    {
+        "php3": 1,
+        "faster-math": 1,
+        "biggerisbetter": 1,
+        "cave-johnson": 1,
+        "blackmesa": 1,
+        "rsa3": 1,
+        "yandere": 1,
+        "rsi": 1,
+        "adoughbee": 1,
+        "infinity_star": 1
+    }
 }
 ```